Things You'll Need
Instructions
Load the "StarCraft Map Editor" from the "StarCraft" folder of your Start Menu.
Expand one of the folders labeled "Player #," where "#" is a number from one to eight.
Click the "Start Location" sub-folder of the player folder that is expanded.
Select the "Start Location" icon and move your cursor over the map to a desirable starting location, preferably near resources. Click to drop the starting location on the map. When playing on this map, enemy factions will exist anywhere that you placed a starting location.