The rifle is the first weapon you learn how to use, because it lets you keep your distance from the client. The closer you get to being a pro, the closer you can get to the client. The knife, for example, is the last thing you learn.
Does anyone know if the PC version will be leaked before release? I know it probably won't because it's Steam encrypted but if anyone knows could you please let me know? I already have the 360 version preordered but, i'm getting my 360 fixed so i'll need a replacement while i am waiting.