The Revive system at the moment is just plain wrong. When you get revived you should be at max critical health, just like literally any other game that has a revive feature.That would be a great balance to 4v4's as a whole and it just makes more sense. every other game has got that part right even in pve games. Right now in 4v4's you get revived boom instant full health go run and safely jump back into the fight. It could, you get revived, panic to find shield or health boost then go to the fight, or get ressed your friend dies and you fight someone with your critical health win and go find a boost feeling like a badass.

Tl;dr revive should bring you back at critical health, adding balance and more dynamics to the game.