I was thinking, is it possible to make something that changes the way you act? Like, if you walk somewhere (trigger volume) is it possible to make you run faster, aim harder etc. for a certain amount of time? I was was thinking about making some sort of "fear" map, when you go into fear mode, you run faster, punch harder but aim worse you get my point?

SP only,
(player_effect_set_max_rotation <real> <real> <real>)
<yaw> <pitch> <roll>

and idk, but mb the doublespeed powerup works better in SP? If you don't know what it is, it's a unfinished powerup that makes the player run faster (speed listed in globals) but it is the lag king, and it realy messes up around vehicles (you go faster, but vehicles move half speed and laggly lol)

Yeah. The double-speed powerup works in both SP and MP, but either way, it slows down vehicles, projectiles, everything. You throw a grenade in double-speed, and it'll be in the air for a while...basically it's more a matrix powerup than a double-speed.

If it was finished, maybe it'd work, but I doubt it's really something that Halo supports, which is probably why they abandoned it. Maybe H2V would work better on it, I'unno.

ok cuz i was thinking about making it sp