At long last, we've released the browser based Mission Editor for Mobile Assault.
All missions in Mobile Assault (with the exception of the Instant Action mission) were written using this editor, so by releasing the it we hope that players are tempted to make their own missions to share.
Essentially the user is able to place world objects and apply game events that happen during the mission. The saved output is plain text which can be copied (as a .json file) to the PSP so that it can be played in the game.
We're not quite sure what the learning curve is because of how involved we've been with the project, so it'd be great if we can get some feedback, questions etc so that we can evolve a FAQ or any other supporting documents.