Marauder Shields knew his destined battle with Commander Shepard was soon. He had trained and trained in preparation to save Shep from the ending but before he could see it through, he took a holiday to Equestria where he meets a certain rainbow maned pegasus.
I do not own the Marauder or Shepard, they are Bioware's. This random, ten minute job one-off is to honor his sacrifice.