Advance Wars 1+2: BHR Mission 20

Since we found the map with Sonja earlier, we are able to take on the Neotank mission, which is one of the weirder ones. For one, this is the only lab mission where you have an ally, but said ally is a sitting duck and on harder difficulties, can get wiped out, costing you the mission.

The strategy here is that Sami provides cover fire with the battleships to weaken some of the enemy units and then you use up the cruiser to shoot down an air unit or two. There is no way to repair or resupply, so you need to make your shots count. Sadly, her power can't do anything here.

As for Kanbei, we need to capture the neutral properties and get a ground force out to seize the middle of the map. While that is going on, we need to develop an air force to destroy the naval units and make their way up to the top. Due to the winding path, the air units should arrive before the ground. Get in position so you can swoop in and take out the units that threaten you, then go for the rout for the win. When doing this on harder difficulties, cap may be better depending on what resistance you encountered.