vet idea for ram.. it just doesnt sit well with me, why would you disable your most powerfull tank?? just make it stun both tanks with no lasting effect or just frikken remove it and give them an overdrive vet ability and buff acordingly.
That's the point. If you had to sacrifice your best tank to do it you would think twice before ramming. It would be reserved for more dire situations.
The only other option i've seen is to make it a global upgrade, but having to put down resources just to suicide your own tanks just doesn't seem right to me, and I don't want to see the ability removed from the game entirely.