"1. How do you program SFC 2 so that the single player, skirmish mode, space field is as large as the "large" space field found in SFC 1 "
I think I found this out from someone on this site:
Go to the multiplayer menu, click on TCP/IP. Then, where there is a list of games (it will probably be empty), click the create button. There is a huge creation screen with a bunch of different maps and missions. They have large open space, different planets, every terrain you want. Also, some of the missions are fun. I really love the Battlefest, Slugfest, Tourneyfest scenarios. After that, you pick your ships and add in an AI team. You don't even need to be connected to the internet, just use the multiplayer mission builder for single player.