If the airsoft replica was less accurate than a paintball gun, then the hop up wasn't adjusted properly or the BBs were too light (I'm assuming it's the hop up). Every decent airsoft model I've shot has been quite accurate.
That real soldier vibe kind of ruins the game. People will talk **** if your gear isn't authentic or real... how are you supposed to respond to that? Between that and cheating, you definitely have to find the right group to play with.