Heavy

A portly Russian bear, the Heavy has the most health in the game, with a total of 300. Not only that, but his primary weapon, the Minigun, does potentially the most damage per second in the game. These come with the downside of having by far the lowest base movement speed in the game, 77% of the standard movement speed, which becomes 37% when his Minigun is deployed; this leaves the Heavy unable to chase down damaged enemies to finish off the kill, and makes it very difficult to dodge high-damage hits such as the Demoman's grenades and stickybombs, the Soldier's rockets, and headshots from the Sniper. A Heavy will most often be found near a Medic, as the extra 150 health buff helps the Heavy soak up more damage for his teammates, while simultaneously protecting the Medic from any Spies or jumping Soldiers that threaten him.

6v6

Main article: Heavy (6v6)

In 6v6, the Heavy is considered an offclass, used primarily holding last points in 5cp. Heavy will take the pocket's role when in play, allowing the pocket to play more of a roamer position, as he is capable of defending his Medic much better with his high health and damage. Heavy is capable of shutting down bombing Soldiers and Demoman with his Minigun, keeping them high off the ground due to his high weapon pushback. Alongside with these roles, Heavy also serves a purpose in tanking damage.

Highlander

Main article: Heavy (Highlander)

In Highlander, the Heavy is the backbone force of pushing or defending objectives, outputting great DPS while being able to tank incoming spam thanks to his 450 health margin when buffed. Because heavy is so slow and fat he is almost usless without his 450 buff so you usually never stray from your medic. Heavies are usually pocketed by the medic, and a heavy medic pair is called the combo. All players on the team should work around the combo, helping them secure victory.

Weapons

Note: Weapon images link to their corresponding page at the Official Team Fortress 2 Wiki.