Just complete all assault rifle challenges and the gold camo wiill be unlocked.
Enjoy.
You get the m4 by reaching level 10 in the online multiplayer mode.
By spinning crates. in Black Market with ZP
You have to buy cards or pay online in order to get ZP
Unlock all the attachments for the gun.
When you first play, you must use default classes until you level up to Level 3 (I think). This is when you unlock custom classes, and you start with the m4a1
the easiest weapons to master are the scar-h, acr, tar-21,famas, vector, m4a1,and the ak47
guns on call of duty modern warfare 2 are M4A1, ACR, FAL, SCAR-H,TAR-21,AK47, MP5K,UMP45,P90,MINI UZI, INTERVENTION.WA200,RPD, AND MANY MORE
The game's creators may have confused it for an AR-15, but this is unlikely.
Here is a full list of all the assault rifles in the Call of Duty series: Call of Duty 1, 2 and 3: MP44 Call of Duty 4: M16A4 M4A1 AK47 G36C M14 MP44 G3 Call of Duty: World at War: STG-44 Call of Duty: Modern Warfare 2: M4A1 FAMAS SCAR-H TAR-21 FAL M16A4 ACR F2000 AK-47 Call of Duty: Black Ops: M16 Enfield M14 Famas Galil AUG FN FAL AK47 Commando G11 STG-44 Call of Duty: Modern Warfare 3: M4A1 M16A4 SCAR-L Type 95 MK14 AK-47 ACR 6.8 G36C CM901 FAD Call of Duty: Black Ops 2 (This list may not be 100% accurate as Black Ops 2 is not released until November): AK-47 AN-94 Type 95 M16 Galil Type 25 XM8 M4A1 M8A1 Commando
The M4A1 is an assault rifle featured in Call of Duty 4: Modern Warfare, Modern Warfare: Mobilized, Call of Duty: Modern Warfare 2, Call of Duty: Modern Warfare 3, and Call of Duty: Black Ops II.M4A1 is ideal in both close quarters and mid-range combat due to its high rate of fire, decent hipfire accuracy, and low recoil. Steady Aim also makes the M4A1 even better in close quarters. Stopping Power improves further upon the weapon's versatility, making it deadly at all ranges, and Bandolier aids the player's longevity in combat by offering a large supply of ammunition.The M14 is a semi-automatic assault rifle featured in Call of Duty 4: Modern Warfare, Call of Duty: Black Ops and Call of Duty: Modern Warfare 3: Defiance.The M14 is considered to be a "love it or hate it" or make/break weapon. Players will usually place the M14 on two extremes as a preferred (for high stopping power) or a non preferred weapon (for high recoil and manual rate of fire). With Stopping Power, it can kill in two hits at any range, or one hit if shot in the head within its maximum damage range. However the M14 benefits less from Stopping Power than most gunsMore details can be found at the related links when this information was obtained without being edited
Level up enough to unlock custom classes. Select "Custom Classes" and Custom Class 1 should already provide it. Or, you can pick an M4A1 off the ground from a fallen enemy/teammate.
To aim at the head ;p
tar-21
all i can tell you is to watch the trailer and the gameplay from e3 and you could see maybe various types of guns. but if you do trailer try and relate to ones you actually know. as far as i see it there is, - famas -p90 -ak47 -m4a1 -mp5 -barret 50. cal - and some other sniper rifles and machine guns
Sleight of Hand, Stopping Power, Steady Aim Use Holographic Sight and use M93 Raffica Akimbo for Secondary