User blog:Chantufan/Quertions about MW2

I haven't bought MW2 yet, but I have played it at a friend's house and have a few questions. First, is Roach and Ramirez in the museum somewhere? And does the AA12 have extended mags? And, of course, do you get a bonus if you enter prestige and if so, what is it? And last, do you get to keep your callsigns when you enter prestige? Sorry if I seem kind of annoying but I just need to know the answers to these questions.