15+ i think
In Call of Duty 4: Modern Warfare, the M14 rifle is unlocked at Level 46 in multiplayer.
Level 38, Lt. Colonel 1
level 4
Kill the boss in the last level.
depends if you are refering to live or what
You have to get to level 4.
M for Mature, 17
There is none
by killing enemies, if your talking about online
get to level 55
play search and destroy
By simply selecting the mission you want on Mission Select...