Advance Wars 1+2: Mission 21 (Andy)

Andy's version of the campaign comes to a close with a very unique mission that no one else gets to experience. If you did all of the missions with him until now, Drake will be waiting to lend you his aid in the final battle in the GBA version.

The objective here is to find a unit Drake is hiding and sink it, basically hide and seek with bombs. There are only a few places he can hide, and luckily, you are able to reveal it from land, so you are able to use the Battleship and Rockets to win rather than sending in your navy. He has a few units here and there waiting to mess with you, but you even have the option to ignore them as long as you know in advance where to find the unit. Since I wanted to sink everything, I took the invitation and attacked both ways before bringing the mission to a close.