I did some hacking and now whenever i open barracks the game crashes and i cant join multiplayer matches. Any help would be appreaciated!
Did you hack Max Prestige? If so you'll have to find a trainer and reset your level or else it'll keep on crashing.
Can you please tell us what you changed & what you used ?
If I'm not wrong, you used Error Fixer or something else that changed your level..
You will have to do Fresh Start.