User blog comment:Crazy sam10/Modern Warfare 3 receives weapon rebalance/@comment-203.104.24.7-20120802153412/@comment-71.165.28.147-20120803185531

The Usas has some significant drawbacks: High visual recoil, slow reload w/o sleight of hand, and poor damage at range. The AA-12 is powerful in its range, but its lack of range is why they put the range proficiency in the game. The ACR is powerful and all around a good gun, along with the MP7, but their later unlock is what seems to balance them, along with fairly unclear iron sights. The Type 95 also has terrible iron sights and is 3 round burst, making it a longer range weapon, but since it has poor long-range damage, it is balanced. The machine pistols have a decent amount of recoil while akimbo, except for the Skorpion, but its low damage makes it balanced.

On a side note, just because it's good doesn't mean it's unbeatable by other weapons of their class. I could outplay the Type 95 with the AK, and have done so many times. The MP7 is nothing compared to a rapid fire PM9 at close range. The Usas is easily beat higher damage shotguns, like the Model 1887 with damage. And the machine pistols can be beat with G18s but it takes practice.