take a look for pissoffplayer , i made it a while ago i think i released it , if i did you can play any version with any other version no need to do anything but run the hack it had a lot more features ,totally unbannable ip , hradba etc basically it was built to chose a player and then totally enhance his game experiance , it had many features actually too many to list.
it was a 1 stop shop in terms of hacking vietcong gameing , the final version you could change the horn sound when someone stole the flag to the theme from ghostbusters , that one amused me actually.