Fallout: New Vegas

I really enjoy the New Vegas campaign. This is a FRG (Free Roaming Game) and you can do whatever you want, pretty much. You are trying to find the men who shot you and left you for death. So you have to walk around asking where these men are and or went. We do know that one of them is probably from New Vegas and the other two are Great Khans. So you are trying to find The-Way-They-Went.