had some huge issues with the mod spawning significantly more zombies than desired in MP, dove into the code and it appears that the MP scaling for horde's is linearly scaled based on how many people are in game.

For ex, if your per wave min/max zombies is set to 10/20 with one person, you will have 10/20, but with 3 you will have 30/60 per wave.

thought this should be noted, since the mod author only says that it scales, and now by how much.