ich war so frei :
1. In your Doom_III\base directory, open the runact.cfg file.
2. Comment out the last line. In other words, add the "#" sign
in front of the string "devmap $e3_intro" so it looks like the following:
#devmap $e3_intro
3. Launch the game using the main exe.
4. Press the tilde key to bring down the console (just like Q3)
5. Type the following: exec runact.cfg
6. Hit enter, and then go grab a soda. Seriously, it takes about 5 mins
to load all the crap.
7. Once it is done, you can launch the intro movie, or play yourself.
8. From the console, use the following commands:
map e3/intro (Loads intro movie)
map e3/e3_1 (Loads first map)
map e3/e3_2 (Loads second map)
map e3/e3_3 (Loads third map)
map fred/e3bathroom5 (won't work for some people)
den rest kann man
hier nachlesen