Full list of all 15 Battle Islands: Commanders achievements worth 1,125 gamerscore.
The base game contains 14 achievements worth 1,000 Gamerscore, and there is 1 DLC pack containing 1 achievements worth 125 Gamerscore.
Win your first ranked battle
Win 100 ranked battles
Win 1,000 ranked battles
Reach the Central Pacific Theater
Reach the North Africa Theater
Reach the Mediterranean Theater
Reach the Eastern Front Theater
Reach the Western Front Theater
Promote 20 units
Promote 20 units to rank 5
Donate a unit
Join an alliance
Share a replay with your alliance
Reach the East Asian Theater!
Reach the Central Europe Theater