the champ: yeah the beginning of doom is a lot like the beginning of half life, but considering it's a retelling of the original doom story, and half life was basically the doom story but with aliens instead of demons what do you want? i was kind of disappointed in that aspect of doom 3 too but in a way it's hard not to have a section like that. NOLF had the same type of thing, pretty much every modern FPS does. some "calm" section where you learn how to move around and everything. i'm surprised there was no target practice or obstacle course. some of the things you say doom 3 doesn't have it actually does which leads me to believe you skipped levels and/or didn't actually play the game through.
c_o_f: yeah it was a lot of fun. i did one level in it and helped with the design of the monsters and the inserting of them into the game, etc. that sounds like a neat level. my favourite one i did was this level that was designed to seem like it could fit right in with DOOM itself and i think i did a good job. the best part about it was that it had this big room that you went into and later you came into what seemed to be the same room but upside down. which, as you know, was very tricky to do in DOOM's engine.
i had a doom pack when i was a kid on my old pc - back when i didn't really know much about games but still played them. that's why i was a bit confused to hear about a doom 3 - i was sure i played more than 2 games before!