err. I like the idea. What you could do....
first of all, the way out of the bottom base seems to be blocked. Just put a bit of gap.
Joined bases, like legacy said, even if it intends to be a joint base map, I suggest you spread them out a bit.
Also, understand the rules of Use map settings VS Melee maps.
Melee maps,
all preplaced units are removed, besides...
P12, meaning Neutral units, like minerals and gas and player starting locations
Whatever you set the race to, it is user selectable.
Forces are ignored.
player settings are set to default.
Upgrades are set to default.
Terrain and doodad is preserved.
That's what you need to know. Now, to improve
spread the base out a bit, and add more minerals.
Add a bit more terrain into it, but, keep the high lands in the middle. I like it
, perfect ownage spot for siege tanks! You could use this place as a choke point XD
Don't add so many vespene geysers, unless you are going for money maps.
Other than that, it's okay