Lmao. I whole heartedly assure you these are not custom models.
Walls and roof are made of column angle double doodads sized, colored, and slanted at angles to produce the desired effect.
So far this map could be playable with the use of elevators. (Simply have them at a set height and that will be the units height, like a section of normal tile, they're just very laggy unless you remove the skins. A problem i had in a previous fortress attempt where all the walls and stairs were made out of elevators, i had to make them skinless so my computer would not lag and when i loaded the skins for photos it took about 15 minutes, not a good idea.)
And of course to remind, this is very much so a WIP. This is just the front archway and wall, i have had no desires or attempts to add anything else until i get these parts finished.
At this rate the mass of homework i have over the next week i probably wont finish this in time for the contest, but i will finish it nonetheless