I hope you're all ready for some hilariously crappy mspaint sketch art of a map in 2D design.
For my Team Fortress Historical museum concept, I may have found a mapmaker willing to do the hammer work if I can come up with some layout designs. Right now I'm only concerning myself with top-down perspective to see how the map will flow. Nothing here is concrete, anything (and possibly everything) is subject to change. Bear in mind, that nothing is necessarily to proportion.
Link to map layout
So, with all of that in mind, the idea here is that this is a large museum-esque map. Indoors (with high ceiling). No tanks. The "stage" and flank spawns are one large amphitheater room. Only small bots can come from the flanks, but the stage is going to be for all large bot spawns. The grand hallway and whatever path they take will of course accommodate their enormous size.
Instead of going conventional walls and buildings that block and segregate paths. The museum concept will focus on using "exhibits" to instead differentiate pathways. Exhibits are planned to be a mixture of "paintings" (walls with gallery photos hung on them, easy way to create solid, low-poly structures to separate the map at little cost), and static RED bots in various poses and positions as "exhibits".
The final area will have four types of approach. The two lower pathways on each side, and each pathway will also have stairways to a second floor. The second floor will have a catwalk that's above the players spawn (think cp_process), that bots can drop down from.
The red fenced off area is something I was simply toying with, and possibly a gimmick I'll remove. Think velvet rope, separating an entryway off. Players and bots won't be able to use it to walk through (maybe it will be accessible to higher jumping classes such as Solly, Scout, Demo, Detonator Pyro), but the main attraction to it is that is simply a sightline to see what's coming and actually combat through. For a pushed back team, a sniper could be perched behind the ropes and get his picks.
I have never designed a map before, and quite frankly, I never intended to either. This isn't my specialty, but I don't have much of a choice. I've made this into a team project and already have several contenders in other areas--but mapmakers are a harder specialty to come by. I can't keep waiting, so I'm trying to get this off the ground myself. So, please, be gentle.