Hey darkvee! We do have a large team on paper, but up until now it's just been me and thenerd working on the coding part (with a large contribution from monk), so we're glad to have your help!
Look
here if you haven't already to learn how to get the source and work on it (Daniel, too!). Just remember that the server is doing maintenence today, so you won't be able to commit any changes until tomorrow.
As for the AI, yes, the design doc doesn't have a lot of the technical stuff about that.
What we're looking for is basically decision-making and pathfinding for all NPCs in the game. There will probably need to be 3 types:
- Friendly NPCs that follow the players. These should preferably be able to find cover when shooting starts, and shoot back at enemies.
- Neutral NPCs. Basically just mill around, but run and hide if shooting starts.
- Enemy NPCs. Mill around, guard, or patrol until they see the players: then take cover and start shooting.
If this is over your head, well, you can work on just about any part of the code you feel you can help with

.