Rebalance musket (and brutes)

- No longer stuns scrakes offperk
- One-shots brutes offperk

sources/Weapons/Playable/SniperWeapons/Mauler/NiceDamTypeMauler.uc

@@ -7,8 +7,7 @@ static function ScoredNiceHeadshot(KFSteamStatsAndAchievements KFStatsAndAchieve
 }
 defaultproperties
 {
-    stunMultiplier=1.250000
-    HeadShotDamageMult=4.75
+    HeadShotDamageMult=5.0
     bSniperWeapon=True
     WeaponClass=Class'NicePack.NiceMaulerRifle'
     DeathString="%k killed %o (S.P. Mauler)."

sources/Zeds/Nice/NiceZombieBruteBase.uc

@@ -90,7 +90,7 @@ defaultproperties
     PlayerCountHealthScale=0.250000
     OnlineHeadshotOffset=(X=22.000000,Z=68.000000)
     OnlineHeadshotScale=1.300000
-    HeadHealth=180.000000
+    HeadHealth=160.000000
     PlayerNumHeadHealthScale=0.200000
     MotionDetectorThreat=5.000000
     HitSound(0)=SoundGroup'ScrnZedPack_S.Brute.BrutePain'