Why not expand upon the basement. Literally
I feel the basement could be even more fun if it were a bigger, more treacherous secondary zone. Filled with more then one chest, more then four lockers but the same one exit and four hooks.. specifically more incentive to go down there, more places to hide but nowhere to loop. Could make lockers in the basement less sound proof even, to offset the higher number of lockers.
Could even have multiple basement entrances on maps like the game... Tunnel systems to the one true basement. Or fall points where you could fall into the trap that is the basement.
Comments
Only reason for survs to actually get down there is if game spawns a gen there.
I've seen a suggestion to improve territorial/monstrous shrine to add additional basement on the map and force one gen to spawn on one of them. That would be cool.