A new map.
Add BSP folder to your addon folder.
It's that simple.
If you can't do that, you have no buisiness on this site.
This is essentially the same as the other Bespin Platforms (which is not mine) but with the following changes:
Trooper class replaced with Marine
Rocketeer class replaced with Pilot
Clonewar heroes are now Obi-Wan and Darth Maul