The Space Marines Add-on for Battlefleet Gothic: Armada has 7 achievements.
Have all the Masters in a single Space Marines Fleet
Have a Level 8 Admiral with an Ultramarines Fleet
Have a Level 8 Admiral with a Blood Angels Fleet
Have a Level 8 Admiral with a Dark Angels Fleet
Have a Level 8 Admiral with a Space Wolves Fleet
Have a Level 8 Admiral with an Imperial Fists Fleet
Have a Level 8 Admiral with all the Space Marines Chapters