@joejoerocko I was thinking the same thing. But yeah, Advance Wars:Duel Strike I think is clearly the best out of the series. I was not impressed with Advance Wars: Days of Ruin.
@Shevchenko69. Why not? If you use the auto function and lose, that's just means you have to win another fight, which would be the same thing as defending manually. But if the auto fight wins, that's one less fight to do. Seems like a zero risk situation to me.
Interesting, the shape and the color are hints to the nature of the enemy units. For instance, red shapes will attack you while yellow shapes have shields. Crescent shapes fly strait down and then turn left or right, squares go across the screen in a strait line, and the spiky edged things like to home in on you.