Well my idea is a smallish map. It would work best for arena but I could see how an intel game would work. You would just have to manually place the spawns
Key:
Black - Road
Red - Junction (I just wanted to make it more clear)
Green - Forresty park like area, or just open ground
Brown - Buildings. The small square ones in the middle are quite tall.
Grey - Carpark like environment
Blue - Road block. Some kind of obstical to make the road end
I'm making this map for TF2 but I thought it would be cool for AoS too! Oh, there could also be a sewer system too. Good luck if you take up this task...