One thing I notice the AI does is to engage just beyond the fog draw range of the engine. To put it another way - if you set visual range to 1000meters then the AI will call out, and engage targets out to 1200meters and beyond. While this isn't really an issue for infantry, it makes helos and tank experience a pain in the ass. One solution is to crank the visual range in your mission out beyond the range of the weapons themselves: 2000, 4000, even 5000meters. But if you have alot of detail turned on and a large number of units involved this is feasible.
(If you're confused about what I'm referring to, try this to demonstrate: place yourself in a helo then fly towards some distant targets. Your cp/gunner will call out targets well beyond visual range. )
What I'd like to be able to have is some control over the max range at which AI will engage. I'd like it to be just UNDER the maximum range the player can see, not over. Anyone know how one can set this?