BushMan

Hello everyone If someone could help that would be great. I downloaded this game when it came out, but I cant get into a game, when it comes up with the map and I press join game, it never lets me join and It crashes on me all the time, I have tried different servers but does the same thing, it also make my computer slow. I just need your help I have the latest update, I just dont know how to play the game Many Thanks