This isn't war, it's a game, which means there needs to be some balancing.

Anyone remember GC Hoth? It had a nasty tendency to break down because it was all too easy for an Imperial to get in a TIE Fighter, fly it across the map, land it in the Rebel hangar bay, and run in and capture the empty command centre, all this while the Rebel team was fighting out in the trenches. Once captured, the Command Centre became a "Second main base" for the Imperials, and the fight turned into a desperate "last stand" for the Rebels who suddenly had to defend themselves from attack from two sides. A candidate for Push mode if there ever was one, and I seem to recall that the last version of GC actually implemented Push mode.

[Raises hand, feeling a bit dumb ]

FH used ABC to great effect, along with the Push system that forced you to capture things in correct order. Was great for both game-play and historical accuracy.

No, it wouldn't. You'd still have to capture regular control points and achieve other objectives, so it'd be far from "Team FFA", as you put it.

And as a side note, the "common soldier" never sneaked in alone to capture rear line bases singlehandedly .