i know this thread was made a  long time ago but i would like to add my input:

I'm not too good at putting thoughts into words but for halo wars to truely reflect the feel of ''halo'' there has to be multiple ways to progress from one side to the other side of the map (even if its a valley, or a very open area with a straight forward direction to go, there were at least 2 or 3 ways to flank the enemy in halo1) it needs lots of cover too...i noticed in the runthrough/intro video for halo wars that in the beginning wen a squad was ordered to attack a group of grunts they pretty much sat attacking in one spot without moving much, when they could have attacked from inside the base. what im trying to say is the AI has to be fun to play with(obviously) for example,(in halo) its quite hard to make a head on attack on the ''bad guys'' but if you flank them its much easier. this makes for easy and fun gameplay, but only because you are playing smart and not being stupid running head on.(anyone getting what im trying to say?) when u have your units attack they should spread out and try to find cover first, regardless of what the cover is. if you are able to move your units nd flank the enemy, the enemy should easily be defeated unless they have cover to protect from the flanking units.(but seriously, u only try to flank if they are vulnerable, not if they have cover lol) the enemy should also try to find cover and do the same flanking maneuvers. if two infantry units are stuck in a battle that is lasting too long...and there is nowhere to flank them from...then you take the opportunity that the enemy is distracted and run a warthog right through them and then have it gun them down from the back while your troops charge head on and the enemy infantry gets splattered see? it was hard to fight the enemy before, but with the right tactics, it was easy and fun....watching the enemy get demolished before your superior strategy...not because u had units that were strong agianst the certain type of enemy infantry and were able to stand in one place and mow them down. hope this helps with the AI question ^_^