Just beat this mission myself, it's a tough one! I used Colin and Max as the orange COs (use Colin to buy tanks cheap, then use Max with tanks for maximum damage), Javier and Rachael as blue COs (Javier deals out high damage when you get control of the comm towers) and Sensei and Grimm as green COs.
With the orange and green COs, go straight for the missiles a.s.a.p. With the green COs, use anti-air units to fight off the helicopters, then try to capture the south-eastern airport before they do. The blue COs don't seem to come under attack much, so concentrate on capturing buildings and comm towers to save money for some battleships. Watch where that bomb is going, too... it'll do a lot of damage, so try to keep units distanced from each other.
Once you've fired all 9 missiles, destroy the canon with the blue COs battleship and build up your armies on the green (helis are best) and orange sides (tanks). Once you've fired the missiles, the time limit will dissapear, so take it easy and just build up your armies. !
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amy is already unlocked in sonic advance. in sonic advance 2 beat the game with every character with all 7 chaos emeralds to unlock her. in sonic advance 3 beat toy kingdom with sonic as leader ro unlock her.
Bccvc
To beat Mission Motherboard, you need to find all the items necessary to fix Motherboard. The quests and battles with Hacker, Buzz and Delete will give you the items.
No just beat all the challenges
toni