On the slim slim chance that the map author comes back to this someday, there are some major pathfinding problems that all stem from a very simple problem.

Not only are vehicles not used by bots, but many bots, particularly those attacking from the rear staging point, will get stuck in a permanent defence loop. Both of these problems stem from --i suspect -- the fact that flags are stuck inside some cramped buildings with very narrow doors. Vehicle that can't navigate to the exact flagpole center will be abandoned by bots immediately, regardless of whether they can easily drive into the cap range or not. Same applies to infantry, and so if some of those doors are too narrow for pathfinding to generate through, or if there's another pathfinding-related problem blocking them from entering the building, or rooftop, bots will refuse to attack.

The description mentions that blue will struggle to control the compound, and no doubt part of that struggle comes from the fact that 50% of their troops are, at any given moment, getting stuck defending instead of attacking. If the author ever comes back to this map, i hope that these issues can be resolved, cheers.