to fix the crash you do the following!

you and your friends must do this!!!

as of 7/4/2016 you must downgrade the game due to official updates to the game!
you do that by going to goto....

Library > games > right click men of war assault squad 2 > properties > betas > click the bar you see that has a V arrow > downgrade to previous patch!

ok here is what my friend has told me to do......

Whitefox3030: go to Steam\SteamApps\common\Men of War Assault Squad 2\mods\terminator v1.85\resource\entity. open other.pak with winrar or a similar program. go to -vehicle\btr. delete all of the sdkfz251's and only the sdkfz251's. you may want to make a backup of the other.pak before changing it just incase any accidents occur.