Forum:Guns to start

I am about 2 or 3 hours into the game, still doing the prison break mission. EVERY SINGLE gun I come across is some variant of an assault rifle, and 99% of the time it has a 12 bullet magazine. 2 questions. 1) Has anyone else noticed this? Could it be some sort of issue or bug, or is it designed? 2) Without giving me any spoilers of whats to come, when do the awesome new guns start to show up? I've been really disappointed so far. Thanks.