For starters, the AK is number 1 when you learn how to use it properly. I'm glad he at least didnt try the stupid hostage shield tactic, since that is a common newb mistake to think that works. The AK just requires careful pump shooting of 1-2 bullets, and pushing the gun down when going full auto on some ct hos, since the AK can usually headshot with at least one bullet if firing wildly. Who cares how good anyone is or how good each weapon is. Some user created mods like BSW add a bunch of new weapons that are all realistic.
Teamwork is essential and ensures success.
Damn, RS is awesome, I could go on forever about it. But I think this is a good thing. I prefer a game that puts gameplay over realism. I first bought Rainbow Six because the idea of counter-terrorism was a really sound idea. Counter-strike was a much better experience for me.