Well, man, this is a good question. I've been wondering about the lack of this genre in the new site lately, too.

Military-themed RPs aren't my absolute favorite, [i]but[/i] when I get in the mood to do one, that is literally all I want to do. And although there are certainly ways to make them original, I've found that the more original and complex it gets, the harder it becomes for a GM to keep their head above water. Take that Task Force RP I was GMing right before the old site went down. It was no trouble getting up a post or two for my ANA Special Forces Soldier - that was fine. Just like any other RP. However, I also needed to do extensive research on potential missions: where, realistically, could the team be deployed to, what could be going on there, the actual topography of the area, etc. etc.

The hours of research ended up being a strain on my time. The complexity of what I had created ended up being too much, and honestly, had the site not crashed, I'm sure the RP would have died anyway. That doesn't mean I didn't love that roleplay. But it was too damn much on my plate, which is why I've yet to create a new one like it here. So yeah, that's my rationale.