User blog comment:Callofduty4/"blackops2" domain purchased by Activision/@comment-75.81.154.217-20120114011047/@comment-25496444-20120121142148

Black Ops = lots of issues, including lag, weapons and perks being in wrong tiers.

MW2 = only OMA tube and maybe UMP45

See the difference?

Also, I'd hardly call MP7 overpowered. Its low range after which it's five hit kill and its low damage kinda makes it bad in some situations. Also the other SMG that I'd say is particularly good is PP90M1, and would you call PPSh-41 for WaW overpowered? PP90M1 is just like that.