Multiplayer Models

Hi, my Gmod multiplayer is messed up. I can’t see other players when they have hl2 characters on some servers, and on multiplayer, my character is a kleiner not the DOD american soldier I set it as.
Any help is welcome. Yes, I have legit Gmod, right here: http://steamcommunity.com/id/smartuy/games?tab=all

Perhaps they disabled DOD content.