Scully and Doggett have relatively little screentime, as we see the story unfold (in reverse) from the (alleged) antagonist's perspective, but what little dialog the agents do have is really well-written and delivered perfectly. Anderson is great, as usual, and her scenes with Morton are really compelling. But even the most serious episodes of the X Files have to have a few funny moments, usually quips and one-liners from one of the agents, and Doggett wins this round.
I love stories like this, not-quite-time-travel stories; stories told in reverse. This episode feels like a precursor to Memento, which was apparently in production at the same time, but wasn't released until early the following year. So, The X Files did it first. Although, if the writers for the X Files are traveling backwards in time then it's likely they got the idea for this episode from Memento and then just made it before Nolan had a chance. Regardless, even if you don't care for the Doggett years, I recommend this episode. It's one of my favorites from seasons 8 and 9. 9/10.