[quote name='JolietJake']Heavy is the tank, slow but takes lots of hits, great if you have a medic to heal you. Carries a chain gun as his main weapon.
Scout is the opposite of the heavy, fastest class in the game, but also the weakest. Once you learn to run around people and evade hits they're great, can be annoying as hell to fight. Carries a small shotgun as his main weapon.
Pryro is the ambush class, limited range but if you get someone from behind or in a closed in area they're deadly. Uses a flame thrower as its main weapon, secondary air burst attack from flame thrower can reflect some things like rockets or bombs.
Demoman is best if you like setting traps and waiting for people to come to you. The normal grenade launcher can take some practice to use well, the sticky bomb launcher can be used to mine an area and wait for someone to walk into it. Can use the sticky bombs to jump to higher areas. Grenades/bombs can be blow back by Pyro.
Soldier is the ranged explosives class, carries a rocket launcher as his main weapon. Rockets aren't terribly fast and can be evaded or even blown back at you by pyros. Can use rocket launcher to rocket jump to higher areas.
The Spy is the stealth class. If you like to sneak around and mess with people then the Spy is best. Can cloak for a short time and disguise as a member of the other team. Carries a revolver his main weapon, also carries a switchblade knife which can one hit kill an enemy if stabbed from behind. Also carries a sapper which can be used to destroy buildings.
Medic is the healing class. Carries a healing gun which when fully charged can "uber" a teammate making you and them invincible for a short time. Carries a needle gun as his main weapon.
Engineer is the building class. Can build turrets to attack enemies and dispensers to dispense health and ammo. Can also build teleporters to teleport team to areas of the map. Carries a shotgun as his main weapon. Spies are especially annoying when you're a Engineer as they can sap your buildings which will destroy them if you don't repair them fast.
Sniper is the ranged class. As you'd expect he attacks from a distance with his sniper rifle. Spies can be a problem as they can sneak up and stab you while you are zoomed in with the rifle. Rifle has to charge up for a full power shot.[/QUOTE]
Do people who play actually have the concept of "team"? Also, what are good classes to choose for a beginner?