Based on the novel and universe created by Ernest Cline, this fan fiction story tells of the Battle of The Third Gate from the point of view of someone who was there on the ground. Now, you're thinking, "What? We already got what happened there from Wade!" Yes, that may be true, but a battle in a giant mech is drastically different than what it is for those who were on the ground.
ADDITIONAL UPDATE: If you've already downloaded the PDF, I recommend downloading it again. I have revised a part of the ending due to someone pointing out that there couldn't be a live stream of Wade looking for the Chucks because the camera would have been destroyed due to the blast. So, I revised it to make it fit with what was in the story.