These have existed already: Natural Selection, its sequel Natural Selection 2, and Nuclear Dawn. The idea is nice but the actual gameplay isn't fun or sustainable because there's too much interdependence on having a top-notch commander AND having a team of exceptional FPS players; you can't really find two teams of 12 people who can all carve out time to play.
The gameplay is sustainable for a little bit in terms of randoms joining servers but all that's left of NS1 and 2 are extremely niche competitive scenes that don't reach the scale of what you want and Nuclear Dawn has no playerbase. It's a nice idea and NS1 produced some of the best competitive FPS players for a few games (Quake 3/CPMA/Live, Team Fortress 2) but ultimately it lacks the fun factor needed to keep a substantial amount of people playing.
Huh? Natural Selection was insanely fun for me. Either as player or commander. Only reason i stopped playing was because the community shrank too much after a while. Most matches felt nicely balanced and enjoyable even if i lost.
The gameplay is sustainable for a little bit in terms of randoms joining servers but all that's left of NS1 and 2 are extremely niche competitive scenes that don't reach the scale of what you want and Nuclear Dawn has no playerbase. It's a nice idea and NS1 produced some of the best competitive FPS players for a few games (Quake 3/CPMA/Live, Team Fortress 2) but ultimately it lacks the fun factor needed to keep a substantial amount of people playing.