This 7 Days to Die mod fixes Blood Moon Trickle to increase zombie count on horde nights. This increases the number of zombies in the 4th wave from 1-2, to 50. You should get zombies all night.
The forum topic of the mod is here.
Credits: Guppycur, SphereII
If you have any questions or have any problems/bugs, please use the support link (Discord, Forum Topic, GitHub Issues, etc.) in the post. If there is no support link in the post, please use the comments section.