Just an idea I’ve been kicking around, what about having rare building spawns that are overrun with hordes of zombies, like a deadlier version of the wasp houses? It wouldn’t be too hard to tweak the json a bit to add some sizeable groups of zeds, throw in some pre-description, maybe some decent but not “itemgroup rare” loot. Cities are already dangerous, but usually not to the level of a mall or megastore, and it’d help to spice things up.
I’m a little worried about it about it throwing off the difficulty curve though. Good idea, bad idea, suggestions?
Another thing I was considering was adding naturally spawning burning buildings. It is the cataclysm after all. Again, I’m worried this could potentially wreck cities.