diff --git a/sources/Commands/ACommandDB.uc b/sources/Commands/ACommandDB.uc
index b300717..dfd7687 100644
--- a/sources/Commands/ACommandDB.uc
+++ b/sources/Commands/ACommandDB.uc
@@ -54,7 +54,7 @@ class ACommandDB extends Command
 //      Arrays should be kept same length, elements with the same index
 //  correspond to the same pair.
 var protected array<Database>   queueWaitingListDatabases;
-var protected array<APlayer>    queueWaitingListPlayers;
+var protected array<EPlayer>    queueWaitingListPlayers;
 
 //  Auxiliary structure that corresponds to database + JSON path from resolved
 //  database link.
@@ -141,16 +141,17 @@ protected function BuildData(CommandDataBuilder builder)
             @ "data to the old one, instead of rewriting it."));
 }
 
-protected function PushPlayer(APlayer nextPlayer, Database callDatabase)
+protected function PushPlayer(EPlayer nextPlayer, Database callDatabase)
 {
-    queueWaitingListPlayers[queueWaitingListPlayers.length]     = nextPlayer;
+    queueWaitingListPlayers[queueWaitingListPlayers.length] =
+        EPlayer(nextPlayer.Copy());
     queueWaitingListDatabases[queueWaitingListDatabases.length] = callDatabase;
 }
 
-protected function APlayer PopPlayer(Database relevantDatabase)
+protected function EPlayer PopPlayer(Database relevantDatabase)
 {
     local int i;
-    local APlayer result;
+    local EPlayer result;
     if (queueWaitingListPlayers.length <= 0)    return none;
     if (queueWaitingListDatabases.length <= 0)  return none;
 
@@ -165,36 +166,37 @@ protected function APlayer PopPlayer(Database relevantDatabase)
         }
         i += 1;
     }
-    if (result != none && result.IsConnected()) {
+    if (result != none && result.IsExistent()) {
         return result;
     }
+    _.memory.Free(result);
     return none;
 }
 
-protected function Executed(CommandCall result)
+protected function Executed(CallData result, EPlayer callerPlayer)
 {
-    local AcediaObject      valueToWrite;
-    local DBPointerPair     pair;
-    local Text              subCommand;
-    subCommand = result.GetSubCommand();
+    local AcediaObject  valueToWrite;
+    local DBPointerPair pair;
+    local Text          subCommand;
+    subCommand = result.subCommandName;
     //  Try executing on of the operation that manage multiple databases
-    if (TryAPICallCommands(subCommand, result)) {
+    if (TryAPICallCommands(subCommand, callerPlayer, result.parameters)) {
         return;
     }
     //  If we have failed - it has got to be one of the operations on
     //  a single database
-    pair = TryLoadingDB(result.GetParameters().GetText(T(TDATABASE_LINK)));
+    pair = TryLoadingDB(result.parameters.GetText(T(TDATABASE_LINK)));
     if (pair.database == none)
     {
-        result.GetCallerPlayer().Console().WriteLine(T(TBAD_DBLINK));
+        callerPlayer.BorrowConsole().WriteLine(T(TBAD_DBLINK));
         return;
     }
     //  Remember the last player we are making a query to and make that query
-    PushPlayer(result.GetCallerPlayer(), pair.database);
+    PushPlayer(callerPlayer, pair.database);
     if (subCommand.StartsWith(T(TWRITE)))
     {
-        valueToWrite = result.GetParameters().GetItem(T(TJSON_VALUE));
-        if (result.GetOptions().HasKey(T(TINCREMENT)))
+        valueToWrite = result.parameters.GetItem(T(TJSON_VALUE));
+        if (result.options.HasKey(T(TINCREMENT)))
         {
             pair.database.IncrementData(pair.pointer, valueToWrite)
                 .connect = DisplayResponse;
@@ -222,16 +224,13 @@ protected function Executed(CommandCall result)
 
 //  Simple API calls
 private function bool TryAPICallCommands(
-    Text        subCommand,
-    CommandCall result)
+    Text                subCommand,
+    EPlayer             callerPlayer,
+    AssociativeArray    commandParameters)
 {
-    local APlayer           callerPlayer;
-    local AssociativeArray  commandParameters;
-    callerPlayer        = result.GetCallerPlayer();
-    commandParameters   = result.GetParameters();
     if (subCommand.IsEmpty())
     {
-        callerPlayer.Console().WriteLine(T(TNO_DEFAULT_COMMAND));
+        callerPlayer.BorrowConsole().WriteLine(T(TNO_DEFAULT_COMMAND));
         return true;
     }
     else if (subCommand.Compare(T(TLIST)))
@@ -269,38 +268,38 @@ private function DBPointerPair TryLoadingDB(Text databaseLink)
     return result;
 }
 
-protected function CreateDatabase(APlayer callerPlayer, Text databaseName)
+protected function CreateDatabase(EPlayer callerPlayer, Text databaseName)
 {
     if (callerPlayer == none) {
         return;
     }
     if (_.db.ExistsLocal(databaseName))
     {
-        callerPlayer.Console().WriteLine(T(TDB_ALREADY_EXISTS));
+        callerPlayer.BorrowConsole().WriteLine(T(TDB_ALREADY_EXISTS));
         return;
     }
     if (_.db.NewLocal(databaseName) != none) {
-        callerPlayer.Console().WriteLine(T(TDB_CREATED));
+        callerPlayer.BorrowConsole().WriteLine(T(TDB_CREATED));
     }
     else {
-        callerPlayer.Console().WriteLine(T(TDB_CANNOT_BE_CREATED));
+        callerPlayer.BorrowConsole().WriteLine(T(TDB_CANNOT_BE_CREATED));
     }
 }
 
-protected function DeleteDatabase(APlayer callerPlayer, Text databaseName)
+protected function DeleteDatabase(EPlayer callerPlayer, Text databaseName)
 {
     if (callerPlayer == none) {
         return;
     }
     if (_.db.DeleteLocal(databaseName)) {
-        callerPlayer.Console().WriteLine(T(TDA_DELETED));
+        callerPlayer.BorrowConsole().WriteLine(T(TDA_DELETED));
     }
     else {
-        callerPlayer.Console().WriteLine(T(TDB_DOESNT_EXIST));
+        callerPlayer.BorrowConsole().WriteLine(T(TDB_DOESNT_EXIST));
     }
 }
 
-protected function ListDatabases(APlayer callerPlayer)
+protected function ListDatabases(EPlayer callerPlayer)
 {
     local int           i;
     local array<Text>   availableDatabases;
@@ -309,7 +308,7 @@ protected function ListDatabases(APlayer callerPlayer)
         return;
     }
     availableDatabases = _.db.ListLocal();
-    console = callerPlayer.Console();
+    console = callerPlayer.BorrowConsole();
     console.Write(T(TAVAILABLE_DATABASES));
     for (i = 0; i < availableDatabases.length; i += 1)
     {
@@ -323,23 +322,23 @@ protected function ListDatabases(APlayer callerPlayer)
 }
 
 protected function OutputStatus(
-    APlayer                 callerPlayer,
+    EPlayer                 callerPlayer,
     Database.DBQueryResult  error)
 {
     if (callerPlayer == none) {
         return;
     }
     if (error == DBR_Success) {
-        callerPlayer.Console().WriteLine(T(TQUERY_COMPLETED));
+        callerPlayer.BorrowConsole().WriteLine(T(TQUERY_COMPLETED));
     }
     if (error == DBR_InvalidPointer) {
-        callerPlayer.Console().WriteLine(T(TQUERY_INVALID_POINTER));
+        callerPlayer.BorrowConsole().WriteLine(T(TQUERY_INVALID_POINTER));
     }
     if (error == DBR_InvalidDatabase) {
-        callerPlayer.Console().WriteLine(T(TQUERY_INVALID_DB));
+        callerPlayer.BorrowConsole().WriteLine(T(TQUERY_INVALID_DB));
     }
     if (error == DBR_InvalidData) {
-        callerPlayer.Console().WriteLine(T(TQUERY_INVALID_DATA));
+        callerPlayer.BorrowConsole().WriteLine(T(TQUERY_INVALID_DATA));
     }
 }
 
@@ -349,15 +348,17 @@ protected function DisplayData(
     Database                source)
 {
     local Text          printedJSON;
-    local APlayer       callerPlayer;
+    local EPlayer       callerPlayer;
     local Collection    dataAsCollection;
     callerPlayer = PopPlayer(source);
     OutputStatus(callerPlayer, result);
     if (callerPlayer != none && result == DBR_Success)
     {
         printedJSON = _.json.PrettyPrint(data);
-        callerPlayer.Console().Write(printedJSON).Flush();
+        callerPlayer.BorrowConsole().Write(printedJSON).Flush();
         _.memory.Free(printedJSON);
+        _.memory.Free(callerPlayer);
+        callerPlayer = none;
     }
     dataAsCollection = Collection(data);
     if (dataAsCollection != none) {
@@ -372,17 +373,19 @@ protected function DisplaySize(
     Database                source)
 {
     local Text      sizeAsText;
-    local APlayer   callerPlayer;
+    local EPlayer   callerPlayer;
     callerPlayer = PopPlayer(source);
     OutputStatus(callerPlayer, result);
     if (callerPlayer != none && result == DBR_Success)
     {
         sizeAsText = _.text.FromInt(size);
-        callerPlayer.Console()
+        callerPlayer.BorrowConsole()
             .Write(T(TOBJECT_SIZE_IS))
             .Write(sizeAsText)
             .Flush();
         _.memory.Free(sizeAsText);
+        _.memory.Free(callerPlayer);
+        callerPlayer = none;
     }
 }
 
@@ -392,7 +395,7 @@ protected function DisplayKeys(
     Database                source)
 {
     local int           i;
-    local APlayer       callerPlayer;
+    local EPlayer       callerPlayer;
     local ConsoleWriter console;
     callerPlayer = PopPlayer(source);
     OutputStatus(callerPlayer, result);
@@ -401,7 +404,7 @@ protected function DisplayKeys(
     }
     if (callerPlayer != none && result == DBR_Success)
     {
-        console = callerPlayer.Console();
+        console = callerPlayer.BorrowConsole();
         console.Write(T(TOBJECT_KEYS_ARE));
         for (i = 0; i < keys.GetLength(); i += 1)
         {
@@ -411,6 +414,8 @@ protected function DisplayKeys(
             console.UseColor(_.color.jPropertyName).Write(keys.GetText(i));
         }
         console.Flush();
+        _.memory.Free(callerPlayer);
+        callerPlayer = none;
     }
     _.memory.Free(keys);
 }
@@ -419,7 +424,10 @@ protected function DisplayResponse(
     Database.DBQueryResult  result,
     Database                source)
 {
-    OutputStatus(PopPlayer(source), result);
+    local EPlayer callerPlayer;
+    callerPlayer = PopPlayer(source);
+    OutputStatus(callerPlayer, result);
+    _.memory.Free(callerPlayer);
 }
 
 defaultproperties
diff --git a/sources/Commands/ACommandDosh.uc b/sources/Commands/ACommandDosh.uc
index 8c0fb8f..5317fd2 100644
--- a/sources/Commands/ACommandDosh.uc
+++ b/sources/Commands/ACommandDosh.uc
@@ -46,22 +46,23 @@ protected function BuildData(CommandDataBuilder builder)
             @ "by '{$TextEmphasis --min}' option."));
 }
 
-protected function ExecutedFor(APlayer player, CommandCall result)
+protected function ExecutedFor(
+    EPlayer     player,
+    CallData    result,
+    EPlayer     callerPlayer)
 {
-    local int                   oldAmount, newAmount;
-    local int                   amount, minValue, maxValue;
-    local AssociativeArray      commandOptions;
+    local int oldAmount, newAmount;
+    local int amount, minValue, maxValue;
     //  Find min and max value boundaries
-    commandOptions = result.GetOptions();
-    minValue = commandOptions.GetIntBy(P("/min/minValue"), 0);
-    maxValue = commandOptions.GetIntBy(P("/max/maxValue"), MaxInt);
+    minValue = result.options.GetIntBy(P("/min/minValue"), 0);
+    maxValue = result.options.GetIntBy(P("/max/maxValue"), MaxInt);
     if (minValue > maxValue) {
         maxValue = minValue;
     }
     //  Change dosh
     oldAmount = player.GetDosh();
-    amount = result.GetParameters().GetInt(P("amount"));
-    if (result.GetSubCommand().IsEmpty()) {
+    amount = result.parameters.GetInt(P("amount"));
+    if (result.subCommandName.IsEmpty()) {
         newAmount = oldAmount + amount;
     }
     else {
@@ -70,10 +71,10 @@ protected function ExecutedFor(APlayer player, CommandCall result)
     }
     newAmount = Clamp(newAmount, minValue, maxValue);
     //  Announce dosh change, if necessary
-    if (!commandOptions.HasKey(P("silent"))) {
-        AnnounceDoshChange(player.Console(), oldAmount, newAmount);
+    if (!result.options.HasKey(P("silent"))) {
+        AnnounceDoshChange(player.BorrowConsole(), oldAmount, newAmount);
     }
-    player.SetDosh(newAmount);  
+    player.SetDosh(newAmount);
 }
 
 protected function AnnounceDoshChange(
diff --git a/sources/Commands/ACommandGive.uc b/sources/Commands/ACommandGive.uc
index cf5912e..5b30cdc 100644
--- a/sources/Commands/ACommandGive.uc
+++ b/sources/Commands/ACommandGive.uc
@@ -39,24 +39,23 @@ protected function BuildData(CommandDataBuilder builder)
         .ParamBoolean(P("keep-items"));
 }
 
-protected function ExecutedFor(APlayer player, CommandCall result)
+protected function ExecutedFor(
+    EPlayer     player,
+    CallData    result,
+    EPlayer     callerPlayer)
 {
     local int               i;
     local bool              doForce;
     local Text              itemTemplate, itemName;
     local array<Text>       addedItems, rejectedItems;
-    local APlayer           callerPlayer;
     local EInventory        inventory;
     local EItemTemplateInfo templateInfo;
-    local AssociativeArray  options;
     local DynamicArray      itemsToAdd;
-    callerPlayer    = result.GetCallerPlayer();
     inventory       = player.GetInventory();
-    itemsToAdd      = result.GetParameters().GetDynamicArray(P("items"));
-    options         = result.GetOptions();
-    doForce         = options.HasKey(P("force"));
-    if (options.HasKey(P("clear"))) {
-        inventory.RemoveAll(options.GetBoolBy(P("/clear/keep-items")));
+    itemsToAdd      = result.parameters.GetDynamicArray(P("items"));
+    doForce         = result.options.HasKey(P("force"));
+    if (result.options.HasKey(P("clear"))) {
+        inventory.RemoveAll(result.options.GetBoolBy(P("/clear/keep-items")));
     }
     for (i = 0; i < itemsToAdd.GetLength(); i += 1)
     {
@@ -118,8 +117,8 @@ protected function bool GiveItemTo(
 }
 
 protected function ReportResultsToCaller(
-    APlayer     caller,
-    APlayer     target,
+    EPlayer     caller,
+    EPlayer     target,
     array<Text> addedItems,
     array<Text> rejectedItems)
 {
@@ -129,7 +128,7 @@ protected function ReportResultsToCaller(
     if (addedItems.length <= 0 && rejectedItems.length <= 0) {
         return;
     }
-    console = caller.Console();
+    console = caller.BorrowConsole();
     targetName = target.GetName();
     console.Write(F("{$TextEmphasis Giving} weapons to "))
         .Write(targetName).Write(P(": "));
@@ -175,8 +174,8 @@ protected function ReportResultsToCaller(
 }
 
 protected function AnnounceGivingItems(
-    APlayer     caller,
-    Aplayer     target,
+    EPlayer     caller,
+    EPlayer     target,
     array<Text> addedItems)
 {
     local int               i;
diff --git a/sources/Commands/ACommandNick.uc b/sources/Commands/ACommandNick.uc
index 7ddf8d4..7bcd31e 100644
--- a/sources/Commands/ACommandNick.uc
+++ b/sources/Commands/ACommandNick.uc
@@ -27,9 +27,12 @@ protected function BuildData(CommandDataBuilder builder)
         .Describe(P("Changes nickname of targeted players to <nick>."));
 }
 
-protected function ExecutedFor(APlayer player, CommandCall result)
+protected function ExecutedFor(
+    EPlayer     player,
+    CallData    result,
+    EPlayer     callerPlayer)
 {
-    player.SetName(result.GetParameters().GetText(P("nick")));
+    player.SetName(result.parameters.GetText(P("nick")));
 }
 
 defaultproperties
diff --git a/sources/Commands/ACommandTrader.uc b/sources/Commands/ACommandTrader.uc
index 2604dfb..e2c4ce2 100644
--- a/sources/Commands/ACommandTrader.uc
+++ b/sources/Commands/ACommandTrader.uc
@@ -90,57 +90,51 @@ protected function BuildData(CommandDataBuilder builder)
             @ "disable the trader and not boot players inside it."));
 }
 
-protected function Executed(CommandCall result)
+protected function Executed(CallData result, EPlayer callerPlayer)
 {
-    local Text              subCommand;
-    local AssociativeArray  commandParameters, commandOptions;
-    subCommand          = result.GetSubCommand();
-    commandParameters   = result.GetParameters();
-    commandOptions      = result.GetOptions();
-    if (subCommand.IsEmpty()) {
-        _.kf.trading.SetTradingStatus(commandParameters.GetBool(T(TENABLE)));
+    if (result.subCommandName.IsEmpty()) {
+        _.kf.trading.SetTradingStatus(result.parameters.GetBool(T(TENABLE)));
     }
-    else if (subCommand.Compare(T(TLIST))) {
-        ListTradersFor(result.GetCallerPlayer());
+    else if (result.subCommandName.Compare(T(TLIST))) {
+        ListTradersFor(callerPlayer);
     }
-    else if (subCommand.Compare(T(TTIME), SCASE_INSENSITIVE)) {
-        HandleTraderTime(result);
+    else if (result.subCommandName.Compare(T(TTIME), SCASE_INSENSITIVE)) {
+        HandleTraderTime(result, callerPlayer);
     }
-    else if (subCommand.Compare(T(TOPEN), SCASE_INSENSITIVE)) {
-        SetTradersOpen(true, result);
+    else if (result.subCommandName.Compare(T(TOPEN), SCASE_INSENSITIVE)) {
+        SetTradersOpen(true, result, callerPlayer);
     }
-    else if (subCommand.Compare(T(TCLOSE), SCASE_INSENSITIVE)) {
-        SetTradersOpen(false, result);
+    else if (result.subCommandName.Compare(T(TCLOSE), SCASE_INSENSITIVE)) {
+        SetTradersOpen(false, result, callerPlayer);
     }
-    else if (subCommand.Compare(T(TSELECT), SCASE_INSENSITIVE)) {
-        SelectTrader(result);
+    else if (result.subCommandName.Compare(T(TSELECT), SCASE_INSENSITIVE)) {
+        SelectTrader(result, callerPlayer);
     }
-    else if (subCommand.Compare(T(TBOOT), SCASE_INSENSITIVE)) {
-        BootFromTraders(result);
+    else if (result.subCommandName.Compare(T(TBOOT), SCASE_INSENSITIVE)) {
+        BootFromTraders(result, callerPlayer);
     }
-    else if (subCommand.Compare(T(TENABLE), SCASE_INSENSITIVE)) {
-        SetTradersEnabled(true, result);
+    else if (result.subCommandName.Compare(T(TENABLE), SCASE_INSENSITIVE)) {
+        SetTradersEnabled(true, result, callerPlayer);
     }
-    else if (subCommand.Compare(T(TDISABLE), SCASE_INSENSITIVE)) {
-        SetTradersEnabled(false, result);
+    else if (result.subCommandName.Compare(T(TDISABLE), SCASE_INSENSITIVE)) {
+        SetTradersEnabled(false, result, callerPlayer);
     }
-    else if (subCommand.Compare(T(TAUTO_OPEN), SCASE_INSENSITIVE)) {
-        SetTradersAutoOpen(result);
+    else if (result.subCommandName.Compare(T(TAUTO_OPEN), SCASE_INSENSITIVE)) {
+        SetTradersAutoOpen(result, callerPlayer);
     }
-    subCommand.FreeSelf();
 }
 
-protected function ListTradersFor(APlayer target)
+protected function ListTradersFor(EPlayer target)
 {
     local int               i;
-    local ATrader           closestTrader;
+    local ETrader           closestTrader;
     local ConsoleWriter     console;
-    local array<ATrader>    availableTraders;
+    local array<ETrader>    availableTraders;
     if (target == none) {
         return;
     }
     availableTraders = _.kf.trading.GetTraders();
-    console = target.Console();
+    console = target.BorrowConsole();
     console.Flush()
         .UseColor(_.color.TextEmphasis)
         .Write(T(TLIST_TRADERS))
@@ -148,22 +142,23 @@ protected function ListTradersFor(APlayer target)
     closestTrader = FindClosestTrader(target);
     for (i = 0; i < availableTraders.length; i += 1)
     {
-        WriteTrader(availableTraders[i], availableTraders[i] == closestTrader,
-                    console);
+        WriteTrader(availableTraders[i],
+                    availableTraders[i].SameAs(closestTrader), console);
         if (i != availableTraders.length - 1) {
             console.Write(T(TCOMMA_SPACE));
         }
     }
+    _.memory.Free(closestTrader);
+    _.memory.FreeMany(availableTraders);
     console.Flush();
 }
 
-protected function HandleTraderTime(CommandCall result)
+protected function HandleTraderTime(CallData result, EPlayer callerPlayer)
 {
     local int       countDownValue;
     local Text      parameter;
     local Parser    parser;
-    local APlayer   callerPlayer;
-    parameter = result.GetParameters().GetText(T(TTRADER_TIME));
+    parameter = result.parameters.GetText(T(TTRADER_TIME));
     if (parameter.Compare(T(TPAUSE), SCASE_INSENSITIVE))
     {
         _.kf.trading.SetCountDownPause(true);
@@ -180,10 +175,9 @@ protected function HandleTraderTime(CommandCall result)
     }
     else
     {
-        callerPlayer = result.GetCallerPlayer();
         if (callerPlayer != none)
         {
-            callerPlayer.Console()
+            callerPlayer.BorrowConsole()
                 .UseColor(_.color.TextFailure)
                 .Write(T(TCANNOT_PARSE_PARAM))
                 .WriteLine(parameter)
@@ -194,14 +188,17 @@ protected function HandleTraderTime(CommandCall result)
 
 }
 
-protected function SetTradersOpen(bool doOpen, CommandCall result)
+protected function SetTradersOpen(
+    bool        doOpen,
+    CallData    result,
+    EPlayer     callerPlayer)
 {
     local int               i;
     local bool              needToBootPlayers;
-    local array<ATrader>    selectedTraders;
-    selectedTraders = GetTradersArray(result);
+    local array<ETrader>    selectedTraders;
+    selectedTraders = GetTradersArray(result, callerPlayer);
     needToBootPlayers = !doOpen
-        && !result.GetOptions().HasKey(T(TIGNORE_PLAYERS));
+        && !result.options.HasKey(T(TIGNORE_PLAYERS));
     for (i = 0; i < selectedTraders.length; i += 1)
     {
         selectedTraders[i].SetOpen(doOpen);
@@ -209,23 +206,24 @@ protected function SetTradersOpen(bool doOpen, CommandCall result)
             selectedTraders[i].BootPlayers();
         }
     }
+    _.memory.FreeMany(selectedTraders);
 }
 
-protected function SelectTrader(CommandCall result)
+protected function SelectTrader(CallData result, EPlayer callerPlayer)
 {
     local int               i;
-    local APlayer           callerPlayer;
     local ConsoleWriter     console;
     local Text              selectedTraderName, nextTraderName;
-    local ATrader           previouslySelectedTrader;
-    local array<ATrader>    availableTraders;
-    selectedTraderName          = result.GetParameters().GetText(T(TTRADER));
+    local ETrader           previouslySelectedTrader;
+    local array<ETrader>    availableTraders;
+    selectedTraderName          = result.parameters.GetText(T(TTRADER));
     previouslySelectedTrader    = _.kf.trading.GetSelectedTrader();
     //  Corner case: no new trader
     if (selectedTraderName == none)
     {
         _.kf.trading.SelectTrader(none);
-        HandleTraderSwap(result, none, availableTraders[i]);
+        HandleTraderSwap(result, previouslySelectedTrader, none);
+        _.memory.Free(previouslySelectedTrader);
         return;
     }
     //  Find new trader among available ones
@@ -239,14 +237,15 @@ protected function SelectTrader(CommandCall result)
             HandleTraderSwap(   result, previouslySelectedTrader,
                                 availableTraders[i]);
             nextTraderName.FreeSelf();
+            _.memory.Free(previouslySelectedTrader);
+            _.memory.FreeMany(availableTraders);
             return;
         }
         nextTraderName.FreeSelf();
     }
     //  If we have reached here: given trader name was invalid.
-    callerPlayer = result.GetCallerPlayer();
     if (callerPlayer != none) {
-        console = callerPlayer.Console();
+        console = callerPlayer.BorrowConsole();
     }
     if (console != none)
     {
@@ -254,20 +253,22 @@ protected function SelectTrader(CommandCall result)
             .UseColor(_.color.TextNegative).Write(T(TUNKNOWN_TRADERS))
             .ResetColor().WriteLine(selectedTraderName);
     }
+    _.memory.Free(previouslySelectedTrader);
+    _.memory.FreeMany(availableTraders);
 }
 
 //  Boot players from the old trader iff
-//      1. It's different from the new one (otherwise swapping means nothing);
+//      1. It is different from the new one (otherwise swapping means nothing);
 //      2. Option "ignore-players" was not specified.
 protected function HandleTraderSwap(
-    CommandCall result,
-    ATrader     oldTrader,
-    ATrader     newTrader)
+    CallData    result,
+    ETrader     oldTrader,
+    ETrader     newTrader)
 {
-    if (oldTrader == none)                              return;
-    if (oldTrader == newTrader)                         return;
-    if (result.GetOptions().HasKey(T(TIGNORE_DOORS)))   return;
-    if (result.GetOptions().HasKey(T(TIGNORE_PLAYERS))) return;
+    if (oldTrader == none)                          return;
+    if (oldTrader.SameAs(newTrader))                return;
+    if (result.options.HasKey(T(TIGNORE_DOORS)))    return;
+    if (result.options.HasKey(T(TIGNORE_PLAYERS)))  return;
 
     oldTrader.Close().BootPlayers();
     if (newTrader != none) {
@@ -275,69 +276,75 @@ protected function HandleTraderSwap(
     }
 }
 
-protected function BootFromTraders(CommandCall result)
+protected function BootFromTraders(CallData result, EPlayer callerPlayer)
 {
     local int               i;
-    local array<ATrader>    selectedTraders;
-    selectedTraders = GetTradersArray(result);
+    local array<ETrader>    selectedTraders;
+    selectedTraders = GetTradersArray(result, callerPlayer);
     if (selectedTraders.length <= 0) {
         selectedTraders = _.kf.trading.GetTraders();
     }
     for (i = 0; i < selectedTraders.length; i += 1) {
         selectedTraders[i].BootPlayers();
     }
+    _.memory.FreeMany(selectedTraders);
 }
 
-protected function SetTradersEnabled(bool doEnable, CommandCall result)
+protected function SetTradersEnabled(
+    bool        doEnable,
+    CallData    result,
+    EPlayer     callerPlayer)
 {
     local int               i;
-    local array<ATrader>    selectedTraders;
-    selectedTraders = GetTradersArray(result);
+    local array<ETrader>    selectedTraders;
+    selectedTraders = GetTradersArray(result, callerPlayer);
     for (i = 0; i < selectedTraders.length; i += 1) {
         selectedTraders[i].SetEnabled(doEnable);
     }
+    _.memory.FreeMany(selectedTraders);
 }
 
-protected function SetTradersAutoOpen(CommandCall result)
+protected function SetTradersAutoOpen(CallData result, EPlayer callerPlayer)
 {
     local int               i;
     local bool              doAutoOpen;
-    local array<ATrader>    selectedTraders;
-    doAutoOpen = result.GetParameters().GetBool(T(TAUTO_OPEN_QUESTION));
-    selectedTraders = GetTradersArray(result);
+    local array<ETrader>    selectedTraders;
+    doAutoOpen = result.parameters.GetBool(T(TAUTO_OPEN_QUESTION));
+    selectedTraders = GetTradersArray(result, callerPlayer);
     for (i = 0; i < selectedTraders.length; i += 1) {
         selectedTraders[i].SetAutoOpen(doAutoOpen);
     }
+    _.memory.FreeMany(selectedTraders);
 }
 
 //  Reads traders specified for the command (if any).
 //  Assumes `result != none`.
-protected function array<ATrader> GetTradersArray(CommandCall result)
+protected function array<ETrader> GetTradersArray(
+    CallData            result,
+    EPlayer             callerPlayer)
 {
     local int               i, j;
-    local APLayer           callerPlayer;
     local Text              nextTraderName;
     local DynamicArray      specifiedTrades;
-    local array<ATrader>    resultTraders;
-    local array<ATrader>    availableTraders;
+    local array<ETrader>    resultTraders;
+    local array<ETrader>    availableTraders;
     //  Boundary cases: all traders and no traders at all
     availableTraders = _.kf.trading.GetTraders();
-    if (result.GetOptions().HasKey(T(TALL))) {
+    if (result.options.HasKey(T(TALL))) {
         return availableTraders;
     }
     //  Add closest one, if flag tells us to
-    callerPlayer = result.GetCallerPlayer();
-    if (result.GetOptions().HasKey(T(TCLOSEST)))
+    if (result.options.HasKey(T(TCLOSEST)))
     {
         resultTraders =
             InsertTrader(resultTraders, FindClosestTrader(callerPlayer));
     }
-    specifiedTrades = result.GetParameters().GetDynamicArray(T(TTRADERS));
+    specifiedTrades = result.parameters.GetDynamicArray(T(TTRADERS));
     if (specifiedTrades == none) {
         return resultTraders;
     }
     //  We iterate over `availableTraders` in the outer loop because:
-    //  1. Each `ATrader` from `availableTraders` will be matched only once,
+    //  1. Each `ETrader` from `availableTraders` will be matched only once,
     //      ensuring that result will not contain duplicate instances;
     //  2. `availableTraders.GetName()` creates a new `Text` copy and
     //      `specifiedTrades.GetText()` does not.
@@ -350,6 +357,7 @@ protected function array<ATrader> GetTradersArray(CommandCall result)
             {
                 resultTraders =
                     InsertTrader(resultTraders, availableTraders[i]);
+                availableTraders[i] = none;
                 specifiedTrades.Remove(j, 1);
                 break;
             }
@@ -362,16 +370,17 @@ protected function array<ATrader> GetTradersArray(CommandCall result)
     //  Some of the remaining trader names inside `specifiedTrades` do not
     //  match any actual traders. Report it.
     if (callerPlayer != none && specifiedTrades.GetLength() > 0) {
-        ReportUnknowTraders(specifiedTrades, callerPlayer.Console());
+        ReportUnknowTraders(specifiedTrades, callerPlayer.BorrowConsole());
     }
+    _.memory.FreeMany(availableTraders);
     return resultTraders;
 }
 
 //  Auxiliary method that adds `newTrader` into existing array of traders
 //  if it is still missing.
-protected function array<ATrader> InsertTrader(
-    array<ATrader>  traders,
-    ATrader         newTrader)
+protected function array<ETrader> InsertTrader(
+    /* take */ array<ETrader>   traders,
+    /* take */ ETrader          newTrader)
 {
     local int i;
     if (newTrader == none) {
@@ -379,7 +388,9 @@ protected function array<ATrader> InsertTrader(
     }
     for (i = 0; i < traders.length; i += 1)
     {
-        if (traders[i] == newTrader) {
+        if (traders[i].SameAs(newTrader))
+        {
+            _.memory.Free(newTrader);
             return traders;
         }
     }
@@ -410,12 +421,12 @@ protected function ReportUnknowTraders(
 }
 
 //  Find closest trader to the `target` player
-protected function ATrader FindClosestTrader(APlayer target)
+protected function ETrader FindClosestTrader(EPlayer target)
 {
     local int               i;
     local float             newDistance, bestDistance;
-    local ATrader           bestTrader;
-    local array<ATrader>    availableTraders;
+    local ETrader           bestTrader;
+    local array<ETrader>    availableTraders;
     local Vector            targetLocation;
     if (target == none) {
         return none;
@@ -428,17 +439,20 @@ protected function ATrader FindClosestTrader(APlayer target)
             VSizeSquared(availableTraders[i].GetLocation() - targetLocation);
         if (bestTrader == none || newDistance < bestDistance)
         {
-            bestTrader = availableTraders[i];
             bestDistance = newDistance;
+            _.memory.Free(bestTrader);
+            bestTrader = availableTraders[i];
+            availableTraders[i] = none;
         }
     }
+    _.memory.FreeMany(availableTraders);
     return bestTrader;
 }
 
 //  Writes a trader name along with information on whether it's
 //  disabled / auto-open
 protected function WriteTrader(
-    ATrader         traderToWrite,
+    ETrader         traderToWrite,
     bool            isClosestTrader,
     ConsoleWriter   console)
 {
@@ -462,7 +476,7 @@ protected function WriteTrader(
 }
 
 protected function WriteTraderTags(
-    ATrader         traderToWrite,
+    ETrader         traderToWrite,
     bool            isClosest,
     ConsoleWriter   console)
 {