This screen will tell you the default player settings for all eight players at a glance.
Race
There are two choices...Orc or Human. If you choose random CraftGen will choose for you. I am not going to identify the differences between the races or tell you which one is better for what. Buy a strategy guide for that information or check out one of the many fine WarCraft II web sites.
Controller
This determines whether the player is Human or Computer controlled, and if the computer controlled players need to be rescued (both active and passive rescues are supported).
A.I.
A.I. (a.k.a. Strategy) tells computer controlled players to attack by land, air, or sea or just be passive. It has no effect on human controlled players.