Advance Wars 1+2: BHR Mission 24

The time has come for Yellow Comet to show Black Hole to the door. There are different ways this map can play out, such as not having Blue Moon's help if you did the Yellow Comet campaign first. Since the factory maps usually suck, I find it best to have Grit for them whenever he is available, the final one excepted.

If you want a good power score, you need to get across the water with Grit very quickly to try to race over to the factory so you can blast some newly created units. Since they can move on the turn they spawn, you are more likely to get blasted, so I don't recommend this. Most likely, there will be a naval unit or two that you will sink over the entire map, and then a few ground units as you make your way to the seam. It is fairly easy to take a ranged shot to bring it down, which is the simple way to do this map.

As for Kanbei, you don't get a good enough economy quickly enough and with all of the free units Adder gets, it is very difficult to get off the ground in a reasonable amount of time. Since Adder has air support and you do not, you don't even have the option of falling back on a bottleneck and relying on your partner to do anything either. You will win any straight up clash between you and him, so they try to give him advanced units to make it closer to an even match. With the garbage terrain between you and him and his mobility bonus, you can't really cut through that area in a decent amount of time.