The truth is that, everytime will not be a balance between human and zombies in these mods. Why's that? Because there are also 2-3-4 afks during these mods and this number can be higher.
We have to take in consideration the gameplay, like for example, if humans don't have jets in these mods, it's quite impossible for them, unless there are 6 afk Nemesis/Assassins
Reducing the HP for humans, will make it easier for Nemesis/Assassins.
We have to find a ''common'' place for each side. Like reducing dmg on Sniper/Increasing on Survivor, Increasing dmg on Nemesis/Reducing dmg.
We can also do a 1 week test with these changes, but we'll see.