"They mostly come at night. Mostly." -- Biters in polluted areas become more aggressive at night. Includes an option to have biters only attack at night.
Mods introducing new content into the game.
Changes to enemies or entirely new enemies to deal with.
Look at title. At least add an option to toggle day time revenge attacks for artillery.
Correction: Stupid mod breaks artillery revenge attacks entirely. They just do not happen anymore. 0/10 do not recommend this mod.
Uninstalled the mod and now everything works like a charm again.