CTZ's post of that Half-Life shit reminded me of this gem from YEARS back...
It's some Beast Wars: Transformers fanfiction. And it is the worst thing that you will ever read. Some choice quotes (beware spoilers!):
"Optimus: nooo.........You lived like a warrior ans died to an hero."
"Optimus take Dinobot's body back on the Maximals base and destroy it, WITH HONOR!"
"Megatron: EXCELLENT!!!! Now, the Maximal are only 4! And without Terantulas, we are 6, hahahahaha.....This time"
Epic stuff. The same site has an archive of a ton of other Transformers fanfics, all hilarious, either intentionally or unintentionally. At least I thought they were when I was about 10. Check it!