When it says compliment it's not referring to upgrading or improving your weapons with magic, I believe it's referring to them just being there, like how a beach isn't a beach with out the sand. Because there has been literally no mention of warlocks buffing there guns.

*Me right now*

Yu [b][b]dick butt[/b][/b] play as a hunter they say the titans built the walls right? Well i think they proberly built them so the shittest -blam!-s hadd enough time to learn some thing from the orb thing butt not really something a good solider would need to learn, if in fact he was already a good soldier but any way if yu want to play as a book reading piece of shitt. Go right a head! Id play as a human hunter because well whats cooler then skillfully hunting. On other planets. Against invading alien races. To protect book worms and old people.. And as for titans they should keep building roads or some shitt jokes there proberly the back bone of any fireteam. I just think magic is sorta gey

Oh the irony; It burns!