Interesting idea. Would definitely be cool if you were able to include practical lessons like CQC, fireteam operation, or that thing where the trainer randomly selects people to "die" to force the team to re-organize and take up leadership while he critiques them. Since we'd be short on time, I'd guess it'd be more like "set-piece" missions than sprawling WACs and have a dedicated purpose to the mission.
I'm thinking of missions similar to CO13_ImTheCaptainNow_V3.MCN_Aliabad where you have multiple insertion methods (or from the water which we hardly ever do) to rescue hostages on a boat or similar to TVT28_CS_Cartel_Office_v2.Tanoa where you've got a hostage situation and need to clear a building in an urban environment.
Are you focusing on a learning aspect for the event, or more on interesting mission design to sharpen our skills at team mechanics, or just having fun shooting baddies with an organized group of individuals? Do you think you'll make use of "Zeus" stuff to make the missions more streamlined and coordinated (plus quicker to design for weekly events)?