Don't know if this has been mentioned, but I find the speed control buttons very problematic, they often don't respond when clicked. If I'm marching my units across the map on 3x and the enemy moves, etc. the first one, two or three clicks on the speed buttons often don't "take." By then the "10 second melee" might already be over since there is 3x compression. The only solution so far (other than not using them) is to hit pause, then change speed. Part of the trouble here is that you have to hit specific spots on the buttons to get them to work. This is a UI area that needs some work.