What are all those difficulty setting OFP lets me adjust?

Here's a list of OFP's available difficulty settings and what they effect when enabled:

Extended armor: Armored vehicles can withstand greater damage.
Friendly tag: The identification of a teammate in your crosshair will pop up.
Enemy tag: The identification of an enemy soldier in your crosshair will pop up.
Extended HUD info: Waypoints will be shown on the screen with orders and distance.
Auto report:  You will automatically report enemies to your group, sometimes even if you don't actually see them.
Extended map info: Both friendly and enemy location markers will display on the map.
Weapon crosshair: A weapons crosshair will be displayed on the screen when in 1st and 3rd person view.
Auto guide AT: You can lock Carl Gustav and AT weapons on enemy vehicles (like you can with AA weapons on aircraft), instead of having to guide them to target.
Clock indicator: Displays a directional clock in the lower left hand corner of the game screen when a target is identified and announced at a position from 1 to 12 o'clock.
3rd person view: Allows you to switch to 3rd person and command view during gameplay.
Riffle bullet tracers: Bullets shot from all OFP rifle models will emit a tracer light path.
Super AI: All AI soldiers will be set to the maximum AI skill level.

(Source: player InqWiper, on this BIS OFP forum thread).