Starcraft Brood War Remaster: War of the three worlds part 1: I think I understand

Hello and welcome to War of the Worlds! This is a Custom campaign created by Nexo. This is a alternative reality where the happening from the original game is but a multiverse theory and this will be completely different. Please be patient with me as this is my first ever custom campaign playthrough and I am not used to how they can be played. Also I just thought of that selecting a color might help in the placement of the main base....