I had a very strange idea about a map the other day. Without going into detail, there would be a main middle ground, where it would be the quickest to run to the enemy base, except, in each base, there would be a button, that would rain hell from a visible (but not destructible) battery of SPMA's. This would make it easy to stop the enemy flag runner if you were desperate - because you would have some sort of limitation on it to stop using it constantly.

What do you think?