I have started planning work on it and will be posting screenshots asap once the hammering starts XD.
The basic layout is here:

Each room is a battle room here you have to kill in the incoming enemies from all four sides of the room. At the moment the enemies and not totally set as I am looking at trying to make the map dynamic in terms of npc spawns.
All rooms can be re-entered apart from the bonus room which can only be entered once.
Powerups will be dropped; new weapons on a single clip basis, a shield and a cloak.
And just like the game cash items will be dropped; radio, toaster, lamp....fridge.....car..... these will give you cash for the merchants in the bonus room.
The route through the map is completely optional, the bonus room can be skipped and you can go straight to the end or you can choose to do all the rooms. Each room is chosen through a group logic script which I'm planning to write based off the oc_crimson map.
Ideas are welcome of what else you want to see in the map.
Example of the game if you haven't played it:
Smash TV
EDIT - Due to other projects I do not have the time to make this map :c