[Crow King]

1. I don't know about any books, but you can get a decent list of cvars at the Commander Keen page (just use a search engine and you'll find it - I don't remember the exact addy). You can also check Bull's ongoing thread for lots of info. To mix map types, download the mixmaps mod from this web site - check the readme for the list of maps it works with. The g_motd is supposed to be the message of the day on the server, but it doesn't work.

2. The easiest way to mod out the shotgun and rocket is to set their starting ammo to 0 in the tik file (since no other weapons use their ammo, players can't get around this by picking up ammo in the game from other weapons). If you don't want to leave new players who pick these weapons with useless primary weapons, you can make a copy of any other weapon's tik file and rename the tik to have the same name as the rocket and / or shotgun tik. When players choose a rocket or shotgun, they will spawn with the weapon you replaced the original tik with. If you're changes aren't working, you may have another mod on your server that is overriding your changes.

3. The procedure seems correct - make sure you are using a new file name that will take precedence over pak6.pk3.

4. If you mean a client side hack, that's illegal. The 1.11 patch comes with a stand alone server executable.

5. Are you referring to the text in the center of the screen (ie the message of the day)? To do that, you will need to create a main\global directory and copy the localization.txt file (from pak6.pk3, I think) into it. Then make your changes to the "Press Enter to join the battle" line in the localization.txt file and they should start showing up in game.