It is shield running, not retreating. I have no problems with retreating. The fact is, numerous SF, and Ant in particular, have been using shield running in almost every engagement. You can read just from battle reports that everytime the Exeter's BATTLESHIP SHIELD goes down, he high-tails it out of there. The shield goes to 75% and he returns to the fight. Everytime I've ever seen him fight its the same way.