What is your level of experience with this game? I have been really enjoying the mod because it feels more A16ish to me. As another user pointed out, fighting the horde can be as simple as standing on top of a concrete cube with holes in the floor to shoot through. Aside from that, even the newer base designs made popular by content creators like JaWoodle work in Darkness Falls. I am playing on all default settings, first time, no deaths, about to take on Day 35 horde. Unfortunately I think I corrupted my game with the 19.4 update... 😢