Developer Infinity Ward has announced weapon proficiencies in Call of Duty: Modern Warfare 3. The basic idea is the more you use a weapon, the more proficient you become at using it. You’ll also unlock things such as reduced kick and faster melee attacks.
While it sounds like a few of these might unbalance the game, I’m sure with everyone unlocking them it won’t be a problem.
Check out the video and tell us what you think in the comments below.