Mission 21A: Battle Mystery! (Andy)

On Day 1, deploy a medium tank and recon to the western shore, and a rocket (on forest) and tank to the eastern shore. Move your sea units north/east and dive your submarines (underwater units).

On Turn 2, position your submarines slightly east to block enemy naval units from reaching your battleship, which should be positioned west of the subs. Place your cruisers on the opposite side of the battleship. Drake will send a cruiser from the west, which cannot attack your eastern subs. Your eastern subs will protect your battleship from cruiser attacks and remain out of its firing range.

Move your recon south then east from the western shore to spot and destroy Drake's tank with your medium tank. Your eastern tank should eliminate Drake's recon. Position your rocket on the eastern shore to attack any approaching naval units on Turn 2. Move your landers back to transport remaining units. Move your APC (Armored Personnel Carrier) to the eastern shore to refuel your submarines later.

On Turn 3, utilize naval unit matchups in the northern sea. Use your diving submarines to attack Drake's battleship, your cruisers to attack Drake's diving sub, and your battleship to attack Drake's cruiser. For any remaining enemy naval units after Turn 3, continue using advantageous matchups and use your rocket to hit any cruisers within range. Eventually, maneuver your naval units around the island to reach a hidden lander located on a reef near a bridge on the southeastern island.

On land, advance your tanks to attack enemy infantry and tanks. Move your rocket down the bridge for long-range fire support. To win the mission, use your refueled submarines (preventing them from sinking), your rocket, and tanks to destroy the final lander.