You know, it might be an odd suggestion, but wonder what will happen if there's a way for enemies from different factions fight each other? Like, Griffins will attack Zebras, slavers will attack robots, and such. I'm not sure how it'll work into the game, but perhaps hearing some guns blasting from one room to indicate there's a fighting going on in the next one sounds cool and might be beneficial for the player to slip through or wipe the stranglers more easily~