How tf the game mechanic work!!!, I've been grindings so bad on survivor mode, when i saw my achievement it told me to join a faction, i thought I'm not into faction yet, and then it told me to change faction, that means i have already in faction, but when i accept it my hours of grinding are gone?!!!! First of all I'm okay with that, but my fighters are still dead!!! Secondly, the survival mode are so badly broken, if you're new, there's no way you could pass lvl 2, so if you new, it won't last