They were in the game from the earliest days of Early Access.
- SG 500 Pump-Action
- Frag Grenade
- 9mm Pistol
- HMTech Healer
- Dealing damage with Support Weapons
- Welding doors
You do not have to be currently playing as a Support to level it up. As long as you use Support weapons or weld doors then it will count.
XP for dealing damage is not awarded until an enemy dies. No matter how much you contributed, as long as you hit it once you will get the full experience value. If you hit an enemy with weapons from multiple different perks, the XP will be divided equally among them.
- Ammo Backpack: Teammates can get free ammo by interacting with the Support
- Door Repairs: Able to repair doors destroyed by the Zeds
- Welding Proficiency: +3% per Level
- Shotgun Damage: +1% per Level
- Shotgun Penetration:+ 20% per Level
- Ammo: +1% per Level
- Increased Weight Capacity: +1 per 5 Levels
At Level 25
- Welding Proficiency: +75%
- Shotgun Damage: +25%
- Shotgun Penetration: +500%
- Ammo: +25%
- Increases Weight Capacity: +5 (20 Total Weight)
Every five levels, you are able to pick one of the available skills from that group.
Level 5: Ammo Managament
- High Capacity Magazines: Increase magazine capacity of perk weapons by 50%.
- Tactical Reload: Increase reload speed with perk weapons.
Level 10: Training
- Fortitude: Increase Health by 50%.
- Salvo: Increase damage of perk weapons by 30%.
Level 15: Firepower
- Armor Piercing Shot: Greatly increase penetration with perk weapons.
- Tight Choke: Decrease shot spread of perk weapons by 50%.
Level 20: Logistics
- Resupply Pack: Your teammates can get 30% ammo and 20% Armor restored by interacting with you once per wave. You can carry up to 20% more ammo for your perk weapons.
- Concussion Rounds: Increase stumble power for perk weapons 150%.
Level 25: Advanced Training
- ZED TIME - Penetrator: During Zed Time, your perk weapons penetrate through any targets they hit.
- ZED TIME - Barrage: During Zed Time, your perk weapons shoot in near real-time.
- Knife: Machete
- Grenade: Frag Grenade
- SG 500 Pump-Action
- Double-barrel Boomstick
- HZ12 Multi-Action
- M4 Combat Shotgun
- AA-12 Auto Shotgun
- 9mm Pistol (and Dual 9mm Pistols)
- VLAD-1000 Nailgun
- HMTech-301 Shotgun
| KILLING FLOOR 2