This is a basic 1 on 1 melee map with a few modifications:
- Each base has a wall and two gates, once each gate is lifted, it can't be brought back
- The starting bases have no vespene
- Each player starts with 500 gas
- No ghosts or aircraft can be built (Map is Terran only)
- A base off to the side has reusable gates activated by beacons

Random Thoughts:
The reason no aircraft are allowed is because in every way I tried to allow them, it would always interfere with the gate's impact on strategy. (No point in ever opening gate)
The terrain sucks.

Pictures:
Couldn't get the image thing to work, Photobucket link:
http://s909.photobucket.com/albums/ac300/continuumgaming/Starcraft/

Attachments:

Well, it's obvious that you're new... (I don't mean that as an insult.) I assume that the blobs of teal and blue buildings are the gates?

I would strongly recommend using the actual gate units (Units>Neutral>Doodads>Right Upper Door IIRC) from Installation's doodads. Just be mindful of their hitboxes -- the edges are non-solid. (In SCMDraft2, you can watch for this by going to Debug>Enable Debug, and then Debug>Show Unit Collision Sizes.) You can assign the units to the appropriate player, and then script a trigger to open them (Set Doodad State, Disable). This has the benefit that you can re-close them later, if necessary.

Overall, it's a good idea, but this specific map needs... polish.

Thanks, I actually considered using said doodads, but I wasn't sure if I could easily apply them to a separate terrain set. I also wanted the gates destroyable. I will redo the map with the gates, I suppose I can easily add some triggers to have a certain building whose destruction renders the gate unusable.

Although yes, I am a novice mapmaker, this is not my best map. I made a much better game for six players with a couple variations. I only play this map using LAN, however, and I will not post it. This is because I kind of maybe stole the actual terrain from Risk and modified it.