Fortify your position with an A-10C decked out in the colors of the Imperial Fists chapter of the Imperial Adeptus Astartes!  Whether you are killing the mutant, burning the heretic, or purging the xenos, you'll be sure to receive The Emperor's blessing in this bad boy!

Simply go to your SavedGames/DCS.xx/Liveries/A-10C folder (you may need to create the last couple) and plop 'er down and go to town.  If you have any issues, you may have just angered the Omnissiah.  Just contact your nearest Tech Priest or Servitor.