Ahh well, most berserkers I've seen play in multiplayer like its singleplayer, so I guess might as well just play it solo to begin with. My favorite is commando by far, and then medic and firebug. Basically the support you will die solo classes. (Though watching a level 6 medic kite and kill the patriarch or a level 10 wave for 20 mins was amusing). Oh right and ending derail now!