Support Items are useable items that whose effects vary depending on the weapon; some are offensive, some defensive.
Pipe Bomb: A powerful explosive device on a short fuse.
Impact Grenade: Explosive device that detonates on impact.
Boomerang: Throwable and can affect up to 3 targets with one boomerang; causes disorientation.
Hatchet: Throwable and re-collectable, causes instant kill on contact.
Shuriken: Throwable, up to 3. Causes minor damage.
Bear Trap: Placed trap. When walked over, impairs enemy's speed and movement.
Trap-in-the-Box: Explosive proximity-activated mine.
Body Armor: Protects the wearer from damage, but not headshots.
Energy Drink: Restores a set amount of health over time.
Care Package: Places down a health/ammunition station for friendlies and enemies to use.
Motion Sensor: Marks the positions of enemies in range of the device on the radar map for your team.
Airspace Denier: Stops most thrown items that pass near the denier.
Conch Shell: Creates a powerful blast of sound that knocks nearby enemies back and temporarily stuns them. Ideal for repulsing back enemies before they can knife you.
Toxic Gas: Leaves a cloud of nigh-invisible, noxious vapors in your wake. Enemies who pass through the cloud will be damaged and impaired.