Hello! this is just a little discussion is to tell that I found a way to fix the gun game vs survivor mutation, recently I was playing with some friend and after some time we got stucked on the mp5 cause it deals 0 damage, we figure out that if you do a vote to return to the lobby and then play again the mp5 will deal damage, I was searching and I did not found anything related to this so I wanna leave this for anyone that can find it useful. (if after the mp5 the same error goes with the sg-552 then you will need to do the same process again, after there should not be another bug with the mode)

Must say that his is a solution that worked for me and my friends, if it did not work for you then im afraid that I cannot help with that, have a nice day and thanks for reading!