R-22 Spearhead

The R-22 Spearhead was a high-speed retcon fighter used by the Rebel Alliance. It was almost exactly the same thing as the A-wing, except that it swapped the blasters for continuity cannons and the concussion missiles for canon-buster warheads. This allowed it to fix a variety of discontinuities that occured because of video games that depicted the A-wing appearing before the Death Star asploded.