Editing M4 carbine (section)

==Tactics==
The ACOG scoped M4 has a notably high rate of fire, and is often frowned upon by most users of the weapon. However, one can notice that the recoil is greatly increased while ''moving''. The best tactic while using the fully automatic fire mode is to ''stand stationary'' and/or ''crouch down'' to improve accuracy. Crouching or standing still is not recommended where you can get overwhelmed or cornered easily. Because of low damage, single-fire mode only happen to be effective from long ranges. Other than that, it's also not recommended to keep the weapon on single fire at close combat unless you need to manage ammo, keep moving and time your reloading by eliminating last specimen around. M4 single fire will give you large enough space to work when you're holding a narrow choke from a reasonable distance, stay on the move to decide when to burst down and allow you to manage reloads the moment you soft decapitate a low-medium threat such as [[Gorefast]] or [[Bloat]]. At the vast open areas, long reload and weak bullet damage will create a conundrum and require you to use grenades to get out from sticky situations and exhaust the magazine quickly in bursts to move forward.

The M203 mounted on the Demolitions variant of the weapon is extremely useful for crowd control. Using the automatic fire mode, the player can easily do away with individual, weak enemies such as Clots and Crawlers. The grenade launcher secondary fire is most effective on incoming hordes of Gorefasts and Stalkers. In order to deal with large enemies such as [[Fleshpound]]s and [[Scrake]], both the automatic and secondary fire mode must be utilized. 40mm M203 grenade shots often required to be paired with hand grenades to set off stacked bunches for dealing proper damage to Fleshpounds or dispatch ranged threats like [[Husk]] and [[Siren]] quickly. Specimen with above mediocre health such as [[Gorefast]] and [[Siren]] might survive a direct 40mm grenade shot from the M203 but follow up bullet bursts can kill them.

[[Pipebomb]]s can be detonated from afar by shooting them before anything sets them off. 40mm grenade headshots can be utilized to put a Scrake in a slow moving enrage state by [[Glossary#heavy_flinch|heavy flinching]] (above 500 damage by level 3+ on headshot) them at the hands of a high level Demolition, close to their enrage threshold for damage incurred. This requires Scrake to not suffer any sort of stun or another heavy flinch before hand to work. Ideally a hand grenade tossed at their upperbody can be set off with a well put M203 headshot to do it instantly after a few bursts from M4. M203's very limited grenade shot supply should be treated as an extension to the main weapon's destructive capacities as it can easily set off grenades as much as pipes and allow one to cycle weapons faster than [[M79]] after sending a thumper.

For off-perk use with [[Commando]] or as [[Support Specialist]], 40mm grenades from M203 can be used for mini-flinching (above 150 damage) a Scrake momentarily from close quarters before going in point blank and finishing them off with a high burst weapon such as [[SCAR]] or [[Hunting shotgun]]. After flinching the Scrake, an intentional missing automatic fire required to cancel the reload animation of M203 shot, so weapon switch could be done quicker rather than awaiting the reload. If shot at Scrake directly, this will cancel his flinched state early and he may step forward to punish you for it.<br>
For off-perk using the Scoped M4 solely, [[Field Medic]] or [[Berserker]] can have it as a side arm to level up [[Commando]] perk while still keeping it safe. Still, the lengthy reload of scoped M4 sure leaves better options on the field and will not allow a hectic playstyle as difficulty rises.