Alchemist

I hate doing this. First post in a new forum and it's a request. Anyway, I've searched on google and this forum and found nothing, so here goes I guess: a few years back I remember hearing about a streaming video of Carmack playing through Doom 1 Ep1 using only the shotgun, possibly talking over the top of the video. At least that's what I think I remember. If anyone's got some info on this, or better yet linkage to a video file (optimistic perhaps), I'd be really greatful.