Discovered something weird about Doom's Mod Merge. It seems like there's something stopping breakable creates from spawning? I added two big crates to the all.spawn and for some reason they don't spawn. Same applies for seemingly all breakable crates. They are in the alife all.spawn files but for some reason they don't actually spawn.
I added the same crate spawns to vanilla SoC and it works fine? What a conundrum.