http://www.sierragamers.com/uploads/240 ... l_1998.pdf (warning: 48 MB pdf)
Thought this was pretty cool. Hadn't seen the image on page 22 before. Also on page 25, I've seen that Chaingun skin before with the red and yellow bars. Did that indicate your ammo level, or did it have some kind of overheat mechanic way back then? Also note the Plasma Gun model on page 24.