For BO owners on PC, an auto patch claims that "mod support is being added in preparation for upcoming mod tools release."

I'm starting to suspect that the mod tools might not even have level geometry editing at all, in other words they might actually be worse than H2V's. I wouldn't be surprised if the mod tools limited us to mixing the colors up in the stock maps or something. After all why would they release two $15 DLC packs when even H2V level of modding tools would render it useless.