Killing Floor 2 Support Build – Best Weapons Loadout Guide

Last Updated on June 28, 2025 by Samuel Franklin

This Killing Floor 2 Support guide provides perk and weapon loadouts to create the best build for your preferred playstyle and difficulty. Serving a supplementary role this class perk helps their team hold choke points with enhanced welding proficiency, ability to pass ammunition to allies and array of penetrating shotguns that are effective against medium and large tier ZEDs.

This paged recommends tips, strategies, perks and best Support weapons to mix together and while there are several builds below my recommended default is a perk build of RRRLR while using the AA-12 Auto Shotgun and Doomstick.

Table of Contents:
– Support Strategy and Tips
– Support Perks Build
– Support Weapons Loadout

Killing Floor 2 Support Strategy and Tips

Consider these strategy tips based on the situation to elevate your Support gameplay:

• Still A Damage Dealer: The Support is a capable damage dealer at close range but lacks survivability which means the best defence is truly a good offense with the Support thriving in killing ZEDs before they can kill you by stacking hard hitting weapons and positioning themselves to maximise every single shot.
• Weld Carefully: While the Support class does specialise in welding this is actually a niche mechanic based on map and party in public lobbies. With an organised group the usefulness of welding does improve and particularly when paired with Demolitionist for the potential to trap doors.
• Experience Farming: When levelling the Support class use any down time to weld doors for experience given this alongside perk weapon damage are your sources of experience.
• Penetration Power: The Support has high penetration on their shotgun weapons which is fantastic for handling lower strength ZEDs with a single shot and managing chokepoints. Players need to be careful though that this penetration doesn’t enrage any higher strength ZEDs hiding behind the pack.
• Conserve Ammo: For early waves in particular players will want to utilise their 9mm Pistol sidearm against lone enemies to conserve ammo and reduce the need to reload given these are weaknesses of the shotgun weapon archetype in Killing Floor 2.

Killing Floor 2 Support Perks Build

The Support has the following perk bonuses at maximum level:

• 75% welding proficiency (3% per level)
• 25% shotgun damage (1% per level)
• 500% shotgun penetration (20% per level)
• 25% ammo (1% per level)
• Increased weight capacity
• Ammo backpack and door repair

The Support has the following active perk skills to select from:

Notable active perk skills when playing as the Support are:

• Ammo Management: Both of these perks are designed to assist with a key weakness of the Support class through additional magazine capacity or increased reload speed. Given the majority of Support weapons are slow reloading shell based weapons with small magazine sizes the additional reload speed is your better default choice due to the sheer number of reloads you’ll be performing in a match. That being said if you are only using large magazine perk weapons in your loadout like the AA-12 Auto Shotgun the left side is better.
• Training: While it would be nice to be able to utilise the bonus health from Fortitude on the left hand side due to our close ranged nature the added damage is simply too powerful to skip at this perk tier.
• Firepower: This perk tier allows Support players to buff their firepower through penetration or reduced spread. Given the weapons we hold already have sufficient penetration for most of our trash ZED killing needs the decreased shot spread is the superior choice to consistently land headshots on key targets to improve our damage output potential.
• Logistics: The perk tier that makes the Support class a popular addition to any team with the Resupply Pack allowing your team to save money during early waves by providing free ammo and armour. For later waves though where there is an abundance of Dosh floating around and the higher tier ZEDs start to spawn swap to Concussion Rounds to add utility through stumble power.
• Advanced Training: Penetrator can be fun in the right chokepoint situations where it feels satisfying as you take out an entire line up of ZEDs in front of you. Unfortunately these situations are rare and simply don’t warrant taking this choice over the reliable right hand side of Barrage that consistently delivers increased damage output.

Given the above the Support best perks setup is RRRLR as it provides an effective option for early waves as it allows your team to save on Dosh and reach their intended loadout sooner. Depending on party composition, map and game length you can switch to a RRRRR perk setup which adds to your own stopping power when providing ammunition to teammates is less impactful. As a starting point you should consider this swap around wave 3 on short games, wave 4 on medium games and wave 6 on long games.

Killing Floor 2 Support Weapons Loadout Guide

The Killing Floor 2 Support loadouts below maximise your damage and utility and use the bonus additional weight that the Support has available through their passive perks. Built mostly around the shotgun archetype that is known for the ability to hit hard against all ZEDs the Support is also capable of selecting off perk weapons that are effective additions to shotguns either to provide additional range or further utility. The Killing Floor 2 best Support weapons come from a diverse roster of potential loadouts that shift your focus across the range of ZED Specimens you encounter which means players should regularly consider any team weakness they need to fill. Most of your builds as the Support class will utilise the AA-12 Auto Shotgun or Doomstick and can generally be mixed and matched in builds such as the below based on your preferences:

• AA-12 Auto Shotgun and Doomstick: One of the core builds for the Support that commits to the shotgun archetype entirely with the AA-12 providing great flexibility between fire modes, solid magazine size and overall good weapon stats to clear the low to medium tier ZED encounters. Supporting this weapon is the devastating Doomstick that simply melts through the larger ZEDs like Scrakes and Pounds and is our best Support weapon for this role. With these two weapons both being heavy in terms of weight players also have the option of trading one of them for two lighter weapons that alter your ZED focus such as the HZ12 Multi-Action and Double-barrelled Boomstick.
• Doomstick, M4 Combat Shotgun and HM-Tech 101 Pistol: A loadout for the Support that has greater variety by replacing the AA-12 shotgun with the M4 that is similarly effective against lower level ZED types. This also makes room for the Medic pistol for extra anti trash ZED power while adding healing utility.

Written by

Samuel Franklin

Samuel Franklin is the founder and lead editor of the Games Finder team and enjoys video games across all genres and platforms.

Since the original Killing Floor tore through the co-op scene, Sam’s been a seasoned survivor, blasting ZEDs with friends and his favourite class perks. He appreciates the core gameplay loop of the franchise that offers endless challenging variety where he prefers to play traditional firearm classes that have support utility to help his team successfully navigate the various waves of ZEDs.