Here's a checklist you can use when making Invasion maps to ensure everything works properly. Remember, I may be wrong with some things, so be sure to correct me. Oh, and be sure your editing Invasion in Forge. I tried to be as accurate as I could, if I made any mistakes, please correct me. I'll try to get the remaining parts complete as soon as possible.
Glad to see it helped you. I'll start working on figuring out how Flag/Bomb works, and what the spawn sequence does for Backfield Spawn Zones later tonight.