Disabling All WPs Connected means that only about half of the WPs that would normally be generated are generated. Sometimes, you will get chains of systems that are isolated from the rest of the galaxy. Other times, there will just be only 1 or 2 WPs from each system. Generate a few random maps to see this option in action.
To get no WPs on the map, turn on "No Warp Points."
The milita Attack Strength means the damage that their weapons do per round.
Edited your post just before I hit "Post Reply".
Defending Units Per Population means that there will be one militia per X population. At the default setting, every 20 million population will generate 1 militia unit.
[ August 14, 2002, 10:25: Message edited by: Imperator Fyron ]