I'm stupider then rocks when it comes to modding. Crossmod is when you take one gun, and make it another gun correct? I found a g36e to M4A1 CQBR crossmod, which means if I install that, and buy the G36E, it would shoot, look, and act like the CQBR? and before I inject that mod, I make a backup of the G36 file, which would be.. _T_?, if I want it back the way it was correct? I just want to get this straight. Thanks for the help