collision detection?

[betancourtb82]

Well basically what we're trying to do is use the quake game, mod it, and use the HMD to simulate the individual actually being in the game. The scenario would be that an individual is part of a team that is playing capture the flag against another team. We have a valid copy of quake three. The only problem is that we can't get the HMD (nVisor SX) and intersense cube2 to track the movement of the person while he/she is playing the game. As I mentioned earlier, I've never worked with a game like this so I have no clue how to implement the world. Right now we're trying to mod the game but if there is a way to implement it using Vizard I think that would work too. Where should I start.

Thanks