The scout is a fast, but weak class that captures objectives faster, for example pushing the payload cart twice as fast. He has 125 hp and heals more when picking up health items. His weapons consist of a Scattergun (shotgun), Pistol, and Bat. The Scout can double jump, and with the Soda Popper equipped, at full hype, activating the hype (right click with the Soda Popper equipped) will allow you to jump 6 times in the air. Weapons appear purple wen hype is activated. It takes about 13 seconds for hype to load up.

The soldier is an offensive class. He has 200 hp. His weapons consist of a Rocket Launcher, Shotgun,and Shovel. You can replace the Shotgun with buff banners, such as the Battalion's Backup, wich increases defense. Be careful when reloading the rocket launcher- it is very slow.

The pyro is a hit-and-run character. He has 175 hp and heals LOWER hp than other classes. His weapons consist of a Flamethrower, Shotgun, and Fire Axe. Holding the Shotgun, the pyro can perform a kill taunt called the Hadouken (Street Fighter reference). The Flamethrower consumes lots of ammo fast and has the ability to airblast, extinguishing teammates and knocking back foes. The Flamethrower can set enemies on fire and does fast damage.

The demoman is a good trap-setter. He has 175 hp. His weapons consist of a Grenade Launcher, Stickybomb Launcher and Bottle. The Stickybomb Launcher shoots stickies that take a bit to arm. They stick when they hit a solid, unmoving surface. You can shoot stickies farther by holding down the fire button. Reload times are very slow. The Grenade Launcher's grenades explode instantly if they hit a player, otherwise when they stop moving they explode.

The heavy is a tank, with 300 hp. He is very slow, and slower when firing and/or readying minigun. His weapons consist of a MInigun, a Shotgun and his Fists. The minigun fires fast, but deals little damage. However, It's still pretty dangerous. The Shotgun can be replaced with a Sandvich. The Heavy can perform a kill taunt with his Fists.

The engineer is a good defender. He has 125 hp. His weapons consist of a Shotgun, a Pistol, a Wrench and two PDAS. He has an extra thing that can be refilled by lockers and ammo boxes: Metal. Metal is used to construct buildings and upgrade them. The sentry requires 130 metal (100 if it's a mini-combat sentry), a Dispenser costs 100, and the two teleporters also cost 130. He can destroy his buildings manually by swtiching to "weapon" 5, the Destruction PDA. The only way you can upgrade your buildings is by hitting them with your wrench. You must have metal too.

The medic is a good support class, being able to heal players. He has 150 hp and his weapons consist of a Syringe Gun, Medigun, and a Bonesaw. The Syringe Gun heals him passively by 3 hp per second up to 6 hp per second when you don't take damage for 10 seconds, 1 to 4 with the Blutsauger. The Medigun only targets friendly players and disguised spies. You can overheal them by up to 150% of their health. The overheal hp drains slowly while not being currently healed by the medic. By default, you can call for medic with player voice with E.

The sniper should be used for picking off important enemies, such as medics ready to uber. He has 125 hp. His weapons consist of a Sniper Rifle, an SMG and a Kukri. The SMG can be swapped out for Jarate (It's like saying Karate but with a J at the start). You can do a headshot with the sniper rifle (except with the Sydney Sleeper) to instant kill. Prefer hiding in defense as he is pretty useless up close.

The spy is an advanced class. He has 125 hp, and should be used to pick off important enemies. HIs weapons consist of a Butterfly Knife, a Revolver, a Disguise Kit, a Sapper and a Invisibility watch (activate with right click, except for the Dead Ringer). The Spy can disguise as anyc class. You can spy check; see this link: http://wiki.teamfortress.com/wiki/Spy-check
With the Butterfly Knife, your arm raises when behind someone, indicating that you can backstab and do an instant kill. Be warned though; Attacking while disguised will make you lose your disguise! While invisible, bumping into enemies makes you invisible for a moment (excepting the Dead Ringer, but if you spend more time than usual it will revert to the normal cloak). If you are not invisible and you are a spy, disguising will create puffs of smoke around your character. It takes a moment to disguise.