
Here's a basic list of features:
Scout
Radar
Teleporters
Ring of Shadows (invisible to sentries for a short time)
Mortar launching
Spy
Chat spying
Airstrikes
Hoverboard
Sniper
Flash grenades
Anti-missile missile launcher
Beam ladder
Laser guided rockets
Engineer
Bounce pads
Multi Guns - these are upgraded to different guns by each class:
- Scout: Displacer - Random teleportation
- Sniper: Laser Guided Rocket Launcher
- Soldier: Rocket Launcher
- Demo: Grenade Launcher
- Medic: Bio Cannon - infects enemies
- Heavy: Crowbar Launcher - fires exploding crowbars
- Pyro: Flamegun
- Spy: Tesla Coil - electrocutes enemies
Medic
Anti-grenade pods
Can upgrade dispensers to give health
Snarks (little creatures that attack people)
Mortar launching
Demoman
Landmines
Sensormines
SaberDisc
Mortar launching
Solder
Remote controlled attack helicopter
SAM launcher
Tripmines
Pyro
Jetpack
FreezeThrower
Mortar launching
HWGuy
Airpod (allows flying)
Mortar building