As the name implies, I do not know how to install truecombat. I have the file, its truecombat but the pak files are conflicting with quake 3. I also tried to take a look at the guide on truecombat.com, but it is a dead link. So how do I install it and run it? Thanx in advance!

The True Combat site says there's a readme included with the file. Since the file is in .zip format, I assume you can just extract it, preserving the folders. It shouldn't be extracted to your baseq3 folder, but another folder inside your Quake 3 folder, but like I say, if you preserve the folder names, this should be done automatically. Do you have ark on your machine? If so, you can use that to extract .zip files. I'm not sure about Q3 shortcuts under Linux, but to run it, you'd start Q3 and then select "Mods" (I think that's what it is, it might be "Modifications") from the menu. There, all the mods you have installed will be listed and you can choose which to load.

Sry for not replying sooner but I went to linux-gamers.net and there was a tutorial on installing OSP and it said its the same with every other mod. Thanx again for replying tho.