User blog comment:Imrlybord7/Your Black Ops classes?/@comment-1630756-20100904004443/@comment-1079585-20100904005330

Yes. Not sure if this is 100% accurate, but everything else on the site is so here goes.

Lightweight, Scavenger, Ghost (Cold-Blooded), Sleight of Hand, Warlord (Bling), and Second Chance have the same pro effects that they did in MW2, except that Scavenger Pro might not give quite as much ammo.

Hacker (SitRep) Pro allows you to booby trap enemy Care Packages and turn enemy killstreaks and equipment friendly. Very interesting indeed.