Editing M4 carbine (section)

==Bugs/Errors==
*The 40mm grenade fired from the M203 is actually fired from the muzzle of the weapon, instead of the underslung grenade launcher. This can easily be seen by using the slow motion function or when fired during ZED mode.
*One can empty the magazine of the weapon, start the reload, and fire the M203 before the reload is finished, thus canceling out both reload animations.
*The pickup/trader icon for the M203 variant is incorrect. The in-game model does not have an M68 Red Dot Sight.
*If the M4 203 is bought before the M4, then both guns will share the lower, 300 rounds ammo pool of the M4 203. This can be fixed by dropping both weapons, then picking up the M4 first, followed by the M4 203.