I think the towers should work as they do, but it think they should be harder a bit more like the ammo bunkers were. That seems to have worked well.
I think the delay Hitech mentioned should be tried. I'm not sure what the delay is now, 5 seconds? But 30-60 could be better. That will simulate the time it took to get the info to the dispatchers.
The radar of the gvs is another thing, maybe a delay here of 15-20 seconds.
The issue with how it is now is if you run into a single con and you both are looking forward to a1vs 1 it can't happen as everyone in the area zeros in on the fight. It is not so much "trying to sneak up on someone " it's more about being able to make a plan, or working to pull one or two guys out of the herd to have a fight that you think you might have a chance in.