I ended up getting a freeze after awhile with 0.73b so I switched to 0.73d and played through clearing the first zone no problems but decided to restart since my HQ was in a spot where spawning vehicles spawned in a wall and instantly blew up half the time. As soon as it found all the zones it froze.. I stopped it with task manager, restarted and cleared the first zone again just fine. Really not sure what's going on anymore lol. I'll try it some more tomorrow and see what happens. Hopefully we can get this figured out.
Like BigShot said, this is a great idea and still has tons of potential so thanks for working on it.