for awhile i was trying to figure out what most of everything in the AI_profiles.tbl, AI.tbl, and the weapons.tbl meant. i got some help from the wiki and from some of the people on this website... but i found out a lot of things the people said and that the wiki said were wrong. so i did a little testing myself and this is what i found
AI.tble info
the A.I. accuracy has nothing to do with the rate of fire as i have heard a few people say... but it may have something to do with the amount of seconds it takes for the A.I. to lock onto a target.
A.I. evasion is like it says... the higher the rating, the more the A.I. will move around when evading.
A.I. courage, i am not to sure about yet... but i think it has something to do with deciding whether or not to go into evasive mode or staying in offensive mode... in other words... if its courage is high then it will constantly try to get behind you and it will usually be on the offensive trying to keep you off his six... but if its courage is low, then it will usually be on the defensive and in most cases you will end up on his six.
A.I. patience i dont know about... i read that it does nothing, but ive read a few things on the wiki sight to be untrue.
AI_profile.tbl info
A.I in range time- has something to do with the ships avoiding colliding with another ship. when two appollo fighters play a game of chicken on the very hard difficulty level the two ships will usually collide. but if you raise the number on A.I. in range time it will increase the chance of them avoiding a head to head collision. if you raise it to high, they will fly toward eachother at an angle and not head on... and if you raise it way to high they will fly in the opposite direction.
predict position delay- is the amount of time in seconds it takes for a an A.I. to lock onto a target, in which i believe A.I. accuracy and predict postition delay goes together.
A.I. shield management- is the time in seconds it takes for an A.I. to adjust its shielding.
Friendly A.I. fire delay scale- is the rate of fire of the friendly A.I.. a rating of 1 is the normal rate of fire. anything higher and the A.I. will have a slower rate of fire.
Hostile A.I. fire delay scale- is the same as the friendlys except its for hostile.
Neutral A.I. fire delay scale- same as hostile and friendly but its for the neutral faction. in the freespace wiki it doesnt show a Neutral A.I. fire delay scale, but it should because it works.
A.I. turn time scale- adds or decreases a ships turning/banking speed.
Weapons.tbl
Max weapon range- only works for secondarys... if you want to increase the the distance in which the A.I. fires its primaries you must increase the velocity of the weapon... if you increase the life time of the weapon, it will not change anything... you must change the velocity only to increase or decrease the distance in which the A.I. starts to fire its primaries. also i still havnt figured out if max weapon range effects only the player or A.I. or both.
anyways, maybe most of you know all this, but the last time i was on which was about a month ago, i could find no help with all of this. i searched the wiki and i asked here in the forums, and i got some answers but most of them were wrong. i hope this helps anyone. and forgive me for my spelling as i know so many of you are obsessed with

, but im in a hurry and i really could care less

as long as you can read and understand it.