Yeah that totally works as game scenario Hubba. I might try this and see if the simple game mechanics work.
Here's two quick pics of where I'm going. This is my test board and is based on the t-junction section of space crusade. The room sizes are the same but the square sizes are 40mm not 25mm.
I just used grey spray cans and black pen mostly. The rooms are varied to make the board less boring. I may do another pass of detailing once all is made. I've decided to stay away from any 3d features to make them easy to store etc etc.
The second pic is my squad of gretchin-equivalents. Imperial army troopers from dark fire designs (i think). I need 14 and have 8 so will some more printed. These guys have a low armour value, low attack value and ok movement. They will only do damage in groups. So that kind of fits the imperial army quite well I reckon.
I will (may) replace with better pics soon