A few points:
Last "trooper" flight does not mean last task into/out/over Afghan.
Flight was reportedly from "middle east hub" not Afghan, this is probably a political fudge, because the FSTA cannot go into Bastion, despite the fact that the TriStar is the best platform for the hostile task.
DD. TriStar is a better flying machine than DC10. Don't worry about seeing them around, the Scottish air force will buy them and show the RAF how make money with them!
OAP