Both the Engineer and Medic tools could have alternative versions and would replace a former version of use, either the fire or alternate fire mode. Engineer: Replaces alternate fire mode and removes ability to defuse anti-tank mines. New mode would buff the target in a single thing such as reload speed or fire or perhaps just more damage or even an overshield. Medic: This one would replace the ability to heal and you may want to use the AoE heal ability to heal. This one is similar and could either boost damage via fire rate or damage increase or apply an overshield. XP would be gained would be similar to how gunner assistance XP works, getting kills and assists would share it with the driver and in this case the support.
