Sulophian

This is pretty normal to be honest. Wife and I started playing this mod a couple weeks ago and got murdered every horde night while we adjusted to the harder difficulty and learning the class / skill system. Restarted after we figured things out and we're doing fine now. Explosives are super useful for the early hordes, and you don't need anything crazy like rockets. Just a pile of easily made pipe bombs will tear apart the early zombies if you can group them up in one spot.