To any of you out there, you may be getting an error each time you load into a game. There is a fix for this. First, open up the console by pressing ~ (which is located next to the 1 key on the left). After that type in "sv_consistency 0" into the console. After that you should be able to play. Unfortunately this does not work online which is a real shame. Besides that I hope you enjoy shooting a Buff Helpy.