>>26896Counter point: Team Fourtress 2 with the demoknight sub class and the sniper class
They both can kill faster than most other classes, but it's not equal to others, (especially Demoknight since it's considered worse than the demoman) – since balance isn't equal time to kill, but it being able to succeed just as well as every other class/builds – and that success can't be tied to time since the classes/builds goals can be different from each other.
The medic in tf2 heals the team and can do misc damage; while the engineer can also heal, but less efficiently, yet makes up for it with more damage – both are in the support class for this reason.
The medic would be unfair if it can also kill well just as it would be unfair if the engineer was better at healing.
For a more material comparison: the times when heavy was considered unfair was when he had a item that allowed him to be faster, negating his slowness downside, and let Heavy branch away from being a mobile sentry gun.
Granted, I would still like to see him have a optional item to replaces his sandwich, like a jalapeno that would make him run faster in exchange he can't heal while running and is much less accurate. Making him play kinda like scout spy sub class, but a mingun instead of a knife or a back scatter gun. Would also be cool if they allowed heavy to equip a shotgun as a primary, maybe give him a speed boost in exchange for doing this. I'd like to see this not because of a buff, but to create more sub classes to push more diversity in the game, which is massive part of what makes tf2 better received than overwatch