It's not quite point 1, but Natural Selection 2[1] is close, and might even be better than what you're asking for if you're looking to play with (rather than against) your friends. Each team has one player who plays with an RTS view, with all the other players being the units, playing with an FPS view.
[1] https://store.steampowered.com/app/4920/Natural_Selection_2/