So once again the Mandalorians get a backseat in the SW universe. I would think by now the people at Lucasarts would realize the popularity of the Mandalorian class warrior and utilize the wide range of gaming options they bring to the table.
The coop mod sounds like a great project. I have an idea beyond my capabilities. An SP map like you suggest run on a server much like seige gameplay. Where players on a single team would navigate the map and fight bots with an AI like in SP. This may be what you are trying already but I'm sure your hands are tied in coding the mod towards SP type play.
I like the coop options of the past. Sounds like great stuff!