Left 4 Friends is basically a Boomer, Survivors cant kill it, and infected try to kill it. Farthest with the Boomer alive is "winrar" team. Boomer dies, everyone has to suicide.
If you all want to try it on the GC server and if Jackie is willing to code if he wants to (don't blame him if he doesnt.). I suggest:
only one Boomer
5 times Boomer Health
Takes Less or No damage from Gunfire from Survivors
Bile Heals Survivors
Medpacks replaced with Pills
Infected do 50% less Damage to survivors
Boomer death = Everyone dies (no need to suicide)
A way to spice up the season of giving/sharing with a little game of Left 4 Friends. What do you all think? Talked about with Jackie a bit.