Big German-looking guy. Foul-mouthed, domineering, intolerant of strangers and non-humans. He's from the Midwest, home of the radioactive cyclones, and fled to this area to escape Caesar's Legion and to try and make a life for himself. His boys are (older) former raiders who got tired of having to scrounge a living from whatever idiots they crossed paths with. Now they're doing all right by sifting through the wreckage of the old world, but they're not exactly getting rich (because their part of Denver is poor).
His group is sort of like a bunch of middle-aged bikers. They still like raising a little hell now and then, and they're really territorial, but they're not so much into chasing people down or taking ghouls out for a drag. Anton is holding them together with personality and promises of loot, but they're getting frustrated and probably will pack up eventually, maybe settling down with tribals or trying to find real civilization.
They are not evil because of their attempts to steal claims, but their tendency to shoot anyone who gets too close.
Kill the Evil Salvagers: All of the "evil" salvagers are more likely to harm the Prisoner than talk to him, so the only chance the Prisoner has of making any sort of meaningful contact with the gang is through Anton. However, the result of all dialogue choices available is a breakdown in communications and a fight with Anton and his gang.