I am going to show you an example of what to do in the Starcraft Campaign Editor, to know how to make an scenario or make your own battle, this is what you do:
1. First, click the "Campaign editor" area after you start the Starcraft game, then this sign appears, it will tell you if you "Disagree" or "Agree" to something, (I think it's about the rules of the campaign editor) after you get through whatever the sign says, you will see a program that says "Campaign editor" and it will tell you what type of field your map will be, twilight, ground, space, etc.
2. After you select your type of map, you will see on the left "Folders" that says "Brown Zerg" "Red Terrans," "Teal protoss", etc. You click one of them, and you will see the units, buildings of this civilization, and you click one of the units, buildings, and you will see on the map the unit that you clicked, you select where you want the unit to be and you will see the unit on the map! Now you had created you first unit.
3. After you have created whatever units you wanted on the map, you will see the "Triggers" tab, that is what you and the computer are going to do in the game, for example, if you want 50 Zerglings at a specific time to be created for free at your Hive, the game will create 50 Zerglings at the exact time you wanted them to be when you play your map and the population limit doesn't matter for the triggers! That is the best thing about it!
4. So you click the "Triggers" tab, on top of the program, it will appear as opened folder, saying "Force 1" or "Force 2" "Force 3" etc, this will be explained later on the next step. So you will be "Force 1" for now, if you created the enemy like for instance like the enemy will be the Terrans, they will be force 2 because the "Forces" tab will be needed to activate the triggers, so after you want to do whatever you want in the triggers to affect the game to do stuff, you click finish. Here's a tip: You will need spawning areas or military areas that creates the units you wanted them to appear.
5. After you had finished with the triggers, you click the "Forces" tab, you will see an opened folder that will list the civilizations again, (remember the "Brown Zerg" "Red Terrans," "Teal protoss" etc? Well you will see them appear again on the forces tab.)
So if there are two players on the map, then they will have a starting location, so for you the second player will HAVE to be the enemy, because the game won't work that way, so the enemy will be force 2, so you will select it to be the computer, and you will be the human which means player 1.
6. The rest of players will be neutral, since they aren't be on the map.
So this is a list of steps of what will you do on the Starcraft Campaign editor, for first time users.
Edited: JB on 24th Aug, 2012 - 10:59pm
I remember making maps with the editor. It was a lot of fun, I spent a lot of time doing it. My favorite was a space map I made. It had five spawn areas that were all on islands and three random islands with resources.
Yeah, What I do is find a spawn area, and I use the triggers to create the units there, I set up the triggers to create hygralisks 5 per second, and I made the enemy keep create units until the map is full! I have fun using my thousands of hygralisks to defeat the thousands of marines!
Edited: Felipe on 24th Aug, 2012 - 9:00pm
I remember playing up with this too. The only disadvantage I see to it is because you create the map you already know where everything is and what resources there are which really puts you at an advantage but I rather not know it ahead of time so I look for other creator maps or at least I used to.
Have you played a map called, "Twilight struggle"? It has an excellent short scenario,I haven't created it, but it is about four Zerg breeds about to destroy the Terran outpost, and the it is up to the Terrans to destroy all four of the Zerg celebrates to destroy the constant incoming Zergs attacking the Terrans. What I liked about the map is that each mineral has 50000 picecs! And each vespene geyser has 500000!
Edited: Felipe on 25th Aug, 2012 - 12:46pm