We tried out the PVP gamemode in After The Fall today. It was actually way different than I thought it would be, and actually kinda fun in a janky way.
I assumed it would be like L4D/B4B where one team is human and one team is zombie, but it's actually a 4v4 human vs human on small-ish maps and you start with only the pistol, then you have to run around and grab weapons and nades/boosters from predetermined spots on the map (think of it like Quake/UT arena fps) and it's TDM with like a 3 sec respawn timer when you die. It works with a time limit and team with the most kills wins.

Though somehow they managed to make an even worse netcode than Pavlov, it was still fun to try out. We only played 2v2 but I imagine 4v4 must get pretty chaotic with non stop action. Pump shotgun remains OP and whoever manages to find it can just 1 shot anyone he sees at close distance