The majority of AP/The Airsoft community will never be willing to put in the time for something like that. Often those that are lose interest in the community due to the lack of something more than sector control and what not. Then new kids show up who are into that shit and don't give a shazaam about structure and what not.
The group into this stuff will always be small.
Plan and run games that work for small crowds, as time goes on, more and more will join. Simple as that.
Stop trying to get 100+ for a game especially when you've never ran one near that size.
START SMALL. You're going to shazaam it up either way. Most everyone does.