Well, I've been mostly playing GRAW 2 SP after I got my copy, and I must say, both the enemy and Ghost AI in game is a lot better than GRAW 1.
These are the only complaints I have:
1) Enemy AI seems oblivious to what's happening to their teammates.
2) Mule AI is unresponsive at times. Like in the mission "Joining Forces", after I destroyed the tank, and tried to get the mule to move, it just wouldn't do it. I used the tac-map to carefully find a spot where the mule could move, clicked on that point (and saw the blue circle that confirms by order), and clicked execute. But nothing happened. The mule didn't budge, and nothing was blocking it's way.
3) Ghost AI is unresponsive when they come under fire. Now from what I've read in the thread, that's been done so that complete control is given to the player. Fair enough, I still have a bunch of missions to go, so I'll see if paying a lot more attention to where I place my ghosts will help.
Other than that, I have no problems at all with the game. The Enemy snipers are pretty smart, and my Ghosts have saved my ass a whole bunch of time while I've been staring at my tac-map planning out our next move. Most of the time, they are the ones who spot snipers I didn't spot on the tac-map, and most of the time, they're the ones who take out the snipers.
As to the enemy being obvlivious to me, that happens sometimes, but not very often...so it's not a problem. Not all the Mexican rebels are equally as skilled at staying alert.
I'm really happy with my game, MAAAAAASSSIVE improvement over GRAW1.
Thanks GRIN!