The Nebelgeschwader Add-on for Aces of the Luftwaffe - Squadron has 6 achievements worth 205 gamerscore.
Defeat all boss enemies on extreme difficulty!
Defeat a Crow Commander without allowing him to heal!
Finish all levels of the Axis campaign!
Defeat as many enemies as possible with Dark Holes!
Defeat as many Crow soldiers as possible!
Collect fears while Siegfried is hallucinating!