Beat Campaign Mode And Buy Olaf from Hachi for 50 coins.
How to get 2nd CO
Simply get past level 3.
Unlocking The Secret Mission and Cos
To unlock to secret mission, "Rivals", use Sami as your CO for the missions "Captain Drake", "Naval Clash", "Wings of Victory", and "Battle Mystery".
After you finish the campain mode, you can go through it again on a harder difficulty level. On the second time through, you can earn other COs.
Kanbei: Automatic to get him
Drake: Use Andy for "Captain Drake", "Naval Clash", "Wings of Victory", and "Battle Mystery".
Grit: Use Max for "Max Strikes".
Sonja: Win all VS Sonja missions.
Eagle: Win the "Rivals" (note: other than Sturm this is the hardest to get.).
Sturm:Get all of the COs!!! (Now thats hard!)
I just need to get Sonja and Eagle to get Sturm, take it from me, its very difficult!
How to get Sonja
To get Sonja you need to do three things.One you have to beat "Kanbei Arrives" in 8 or less days.Then beat "Mighty Kanbei" in 10 or less days. Next beat "Kanbei's Error" in 12 or less days. Then you go to 3 missons.You v.s Sonja in all 3. You must beat each one using a different CO. 1st one is max,nex is Sami, and last is Andy. Also if you do this, Kanbei will be a CO in "Final Battle".
Get S rank on All missions in ADVANCE CAMPAIGN. Buy Nell for 80 coins
First unlock the level rivals.
Heres how to get eagle and beat it:
build two transporters and move a mech in them.there should be a infantry left and don't move it.
move each transporter 3 spaces forward.
that is it!
there's two goals:
1.captue the airport in the middle.
2.capture the HQ.
he built a bomer,what a waste of money!
your concern is to build all air units.
ignore the bomer and dont bother it.
build a fighter and don't move transporters without 2 fighters and 1 b-copter at least.
and from here you dont need to protect your HQ,because he makes no attempt to capture it,so dont build bomers, keep building fighters and b-copters to protect your
transporters and slowly move them to the airport.drop the mechs when the bomer is out of range.then attack the unit he built on the airport, move somthing on that so its impossible for him to build somthig,capture it, from there use the airport to build more fighters and load the transporters with the mechs and head for the airport.
Unlock Other Cos
Beating the regular campaign will unlock Olaf as a playable CO in Vs. and Link Mode, but you can also get some of the other COs as well. The only problem is that you have to pay for them and certain conditions have to be met to unlock them. Check the Battle Maps room after you beat the Campaign mode -- and Hachi will offer COs for sale (for 50 coins, so save up). Here are the conditions that have to be met to unlock certain COs:
Olaf: Unlocked after beating Campaign Mode
Grit: Beat Campaign Mode and use Max in Mission 4. Buy from Hachi for 50 coins.
Eagle: Beat Campaign Mode and use Sami for missions 15, 16, 17, 18, then beat secret mission 22. Buy from Hachi for 50 coins.
Kanbei: Beat Campaign Mode. Buy from Hachi for 50 coins.
Drake: Beat Campaign Mode. Use Andy for missions 15, 16, 17, and 18. Buy from Hachi for 50 coins.
Sonja: Beat Campaign Mode. Beat Mission 9 in 8 days (or less), Mission 10 in 10 days, Mission 11 in 12 days, then beat the secret missions 12, 13, and 14. You can then buy Sonja from Hachi for 50 coins.
Sturm: Beat Campaign Mode and unlock all other COs. You can then buy Sturm from Hachi.