The whole perk thing isnt really true, i get my ass handed to me by guys with mp5's and early perks all the time and the m16 with iron sighs and a silencer is mean.
If you think you need the Barret or G3 or the desert eagle your wrong. I hate the desert eagle and the G3 my main perks i had at level 30, and i use the m5 as my primary assault rifle.
It is a completely different game then the people coming from DOD are use to though. There isn't a learning curve... its more like getting that new pair of boots to feel right.

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