If you had a private audience with the dev's and best mod / mission makers, what missions would you like to have made for you for SH3?
Historical recreations? Fantasy? Secret missions? Famous missions?
Have a think, come back and post them here. You never know, a mission maker might read your post and think "What a good idea!" I need to say at this point I'm not an epxert mission maker!
Here's one - I'd like some clandestine missions like inserting or picking up secret agents, you'd have to travel to rendevous points, updated by radio messages, obviously without being detected, wait til darkness, approach a beach or a small boat where a secret agent would be waiting. You surface, bang open the hatch and he makes to climb aboard. Sudennly - AALLLAAARM! Aircraft! and your conning tower is lit up by a searchlight! you dive and turn away but now there are DD's bearing down you and the only means of escape, and keeping the agent alive is shooting your way out.
Go mad, let your imagination run riot!