That mode idea sounds a lot like the Natural Selection games wherein each side has a commander that directs their respective teams and can do RTS things. Link to NS2 on Steam
That said, it'd be interesting to see it in a permadeath scenario rather than resource-based respawning.
copying my response to another thread:
>You can make your own crosshairs if you care enough.
>First, get http://customdesktoplogo.wikidot.com/download
>Set your game to windowed fullscreen
>Then make a crosshair image and overlay it on your screen using the app.
>For example, here's a green one for 1080p. https://i.imgur.com/sDGDQw6.png
>The only downside is that the darwin crosshair will show if the custom one doesn't fit over it.
Its really easy to do tbh, would be nice if there was options ingame of course