sorry for asking so many questions :( but my brain is eager for modding :3
its sorta a list >.< if you can take some time to answer them I would be greatful

1. How do you put ai in a map?
2. what programs would you need to put the ai in the map?
3. are biped tags or tags the cover of the 3d body?
4. how would you put those tags onto an ai?
5. YET AGAIN what programs would you need for 3 & 4?
6. how do you make ai super smart?
7. how do they respawn what would you need to do to make then respawn if they dont already.
8. can you put ai in a already modded map?

plz can anyone respond :[

1. here is a tutorial: http://www.youtube.com/watch?v=lxWYgZfxMa0
2. you need the halo editing kit(hek), you can download it there: http://hce.halomaps.org/index.cfm?fid=411
7. just set the respawn in sapien
8. Yes but you need to rip it with hek+, you can download it there: http://hce.halomaps.org/index.cfm?fid=1541

3.) Biped Tags are already the character(example: the player) you just need to do something to make it into an AI character(Im sorry but I dont know how tho. Ask these guys)

Usually, the bipeds include a .actor_varient tag, this is the ai. If you want to create a custom biped you need to replace the gbx model and the collision(animations are optional because you can use the default animations if you keep the same nodes and markers).But, I've never created a biped so, I can't really help you with this.