Originally Posted by birdshake
That will definately depend on the efficiency of those guns and not something you can state before you've seen/tried the game.
I guess they could make the Galil, Famas or any new gun just as good as the M4 or AK but it would be hard for me to see that happening. I watched several pros scrim against each other and they seemed to be using the typical M4, AK, AWP, deagle weapons that you see in 1.6 and source. They also used a few of the new weapons but I'm guessing that was just for show (it was streamed live). Forgot to mention that the "usage" I am talking about is in competitive play. Casual play (in pubs or whatever) doesn't really matter when it comes to weapon dynamics cause the server can just ban a weapon if they want.
I will admit though that the galil and famas are great options for getting early mid picks on season, tuscan, inferno and d2 etc on the second round.