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.
You have won 1,000 ranked battles!
You have reached the Western Front theater!
You have reached the East Asian Theater!
Promote 20 units to rank 5
You have reached the Eastern Front Theater!
You have won 100 ranked battles!
You have promoted 20 units!
You have reached the Mediterranean Theater!
You have shared a replay with your alliance!
You have reached the North Africa Theater!
You have donated a unit!
You have won your first ranked battle!
You have joined an alliance!
You have reached the Central Pacific Theater!
Reach the Central Europe Theater