Just wanted to give a little feedback:
much too easy to label it hard - even medium would be exaggerated. I guess the "hard" part about this mission is getting 7 players together
I'm not sure how to balance it. Maybe guard the middle cp a lot better and have some stray units scattered around the southern part of the map.
We just used airborne rangers, artillery strikes, some free debuffs and - very effective - tank factory and airport.
When we got the 3 cps we didn't even defend them, instead we were fooling around. So the cpu should send more stuff to recapture those points.