Hi Ed, thanks for your reply!
I thought it would make the game more interesting having different enemy employing different strategies in the same battle. I will consider making them stick to the same strategy.
I agree for the easy and normal levels. But on hard and very hard level an enemy who sticks together will make the difference.
Another point: When the enemy opts for retreating and camping, they always do the same: line up at a hiding spot at the edge of the map. This is very predictable. When they are escaping I can chase them without taking cover because (almost) none of them will stop to return fire. Suggestion: When retreating, the enemy could chose different places for camping, for example inside a building. Or they could fake a retreat and and prepare an ambush nearby.
Your game is great, but it is over too soon :-) I would prefer more missions and new challenges (in future versions, I know the strategy map is not your focus at the moment).