Whole squads of medics, but no revives

I had it happen just a bit ago. One support was in a corner at the edge of the cobat area, behind a car, farming KD, not pushing the objective, and not leaving his precious spot to revive or help in any way.

You know what it is? The only reason they are support is so they can refill their own ammo and heal themselves. Without class-locked weapons by default, they can use whatever gun they want, refill their own ammo, and farm spawns for their KDR or weapon grind.

The person with ammo refill should not be the person to revive. Reviving is something that you do for your fellow people who are assaulting. Like someone who is in combat, assaulting, like a combat medic. We could call them assault class. They could assault and revive, but not supply ammo so that they don't have the tendency to be players who only farm kills.