I present to you a little base, which you might implement in your own project/map. As you can see you can edit/expand the road and other areas of the base.

Structure:
- 4 watchtowers
- hangar
-barracks
-basketball court
-tank, helicopter
-shooting hall
- ...

Note:
There might be some little errors in the schematic. Thank you for understanding!
The vehicles/helicopter/jet does not /do not quite fit into the scale, because I wanted them to look a bit more realistic.