You have a spectrum of options for how Xconq will set up a game based on your design. At the one end, you can build a scenario that specifies everything exactly, down to the last unit. Lest you think this is too restrictive to be interesting, consider that this is how chess works... At the other end of the spectrum, you can let Xconq manufacture everything, starting only with a handful of numbers that you supply.
The next several sections describe the alternatives available for game setup. It is important to understand what is possible, because in general the character of an Xconq game will depend strongly on the initial setup, and players will be very angry (with you!) if they discover, several hours into a hard-fought game, that they've been given a grossly unfair starting position.