Advance Wars 1+2: Mission 23 (Max)

Sturm finally makes his entrance and you get a very small test of what he is capable of. He has no mobility restrictions, and above average power boosts for all units. Luckily, here he does not have his power, but this map would not let him take advantage of it well.

I recommend Max for this one as he has the direct power to overwhelm Sturm, and you can turn this into a melee match without too much difficulty. Use your power periodically to smash any sort of blockade he starts to establish and you can easily bring him down. If he somehow gets the airport, you can use Cruisers to sink whatever he spawns, but you are better off getting it so you can add Bombers to your arsenal.

Overall, not a tough match and you have a few ways to go about winning, so pick the method you prefer and drive things home as you make your way to the Final Battle...