User blog comment:Callofduty4/Why is it a sin for Treyarch to rip some aspects off of Infinity Ward but OK for Infinity Ward to rip off some stuff from Treyarch?/@comment-1142365-20091228180306

Totally agreed. Those perks are good when used with a riot shield, as it balances everything else out, because you cannot use a primary weapon.

However, if it is used in "knifing" classes, it fucks the whole game up.