Perk I = Maraton pro with no damage and hoping obstacles faster.

Perk II= light on your feet pro to moves faster

Perk III = Commando Pro

Gun 1= MP5

Gun 2 = the first pistol... i can't remember the name.

And all i do is rip it...run around randomly and stab everyone. works great... i never actually shoot anyone just go and stab. Ranked up from 15 to 22 in 1 evening of playing. I'm working on getting the tactical knife but 75 kills with that shit pistol is hard