How do i become OPFORE?
 

I can't change teams to OPFORE it is impossible. If I change teams I keep beeing the Americans, why can't I change to the other side (with ak47 and the other weapons)?

You can never be the OPFOR, that's because AA makes any given situation (Assualt-Defense) play as if your an american assualting or defending. The actual OPFOR that you see are other players that think they are the americans and you are the OPFOR. This way you dont really have people pretending to be terrorists who are trying to kill americans. The reason you see both sides as the OPFOR when you first login is because you haven't joined either side yet. You can however pickup the OPFOR's weapons and use them, but your still just a normal soldier.