Updated in January 2026 Resident Evil Survival Unit Added three new legendary heroes: Chris Redfield, Rebecca Chambers, and Billy Coen. While you can pay to get them, all three are also easily obtainable for free — while remaining free-to-play it may take some time to get enough files to raise their Star Tier rating.
So, to help you plan ahead, this guide explains exactly How to get Chris, Rebecca and Billy in Resident Evil Survival Unit. Keep in mind that they may not be available yet if you're playing on one of the newer servers.
Resident Evil Survival Unit: Beginner Tips and Tricks
Find out the basic tips you need for a Resident Evil: Survival Unit, including how to handle special resources, combat moves, and more.
How to get Chris in Resident Evil Survival Unit
To bring in Chris Resident Evil Survival Unityou need Get 10 Chris Redfield files from either “Turn your fortunes around!” eventor Vaccine Research Laboratory Merchant Shop tab. Spin Your Luck (which you can get from redeeming. RESU codes), and it costs Vaccine Lab Tokens to buy Chris's files from the merchant — which you get by participating in the “Vaccine Lab Raid” event.
After you've used your 10 Chris Redfield Files to get him, you can increase Chris's Star Tier Rating by using Legendary Universal Hero Files, but you can continue to use more Chris Redfield Files if you want to keep the wheel spinning, or spend Vaccine Lab Tokens. Or, you can use a combination of both Chris and Legendary files.
If you don't see any of these ways to get Chris Redfield files into your game, your world creation date requirements may not be met. All you have to do in this situation is wait until your server is old enough to add Chris.
How to get Rebecca in the Resident Evil Survival Unit
Bring in Rebecca Resident Evil Survival Unityou need Get the 10 Rebecca Chamber files”Evidence of Ace” event, Vaccine Research Laboratory tab of the merchant shop, or by Buying daily benefit packages. Daily Benefit packages cost real money, and you must select Rebecca from the list of available heroes before purchasing any to make sure you're getting her files. Where you can get the Rebecca Chambers files for free in Ace's Proof by ranking in the top 100 players, or by earning Vaccine Lab Tokens from the Vaccine Lab Raid event.
After you've used your 10 Rebecca Chambers files to get her, you can increase Rebecca's star rating by using Legendary Universal Hero files, but you can continue to use more Rebecca Chambers files if you want to buy her outright, spend your Vaccine Lab Tokens, or try to get a good continuation of the 'Pro Rank' in Ace. Or, you can use a combination of both Rebecca and Legendary files.
If you don't see any of these ways to get Rebecca Chambers files into your game, your world creation date requirements may not be met. What you need to do in this case is wait until your server is old enough to add Rebecca.
How to get Billy in the Resident Evil Survival Unit
To bring in Billy Resident Evil Survival Unityou need Get 10 Billy Koen files from eitherSpecial Exchange” eventor Vaccine Research Laboratory Merchant Shop tab. You need to spend gems or real money in a special exchange program, and this costs Vaccine Lab Tokens to buy Billy's files from the merchant — which you get by participating in the Vaccine Lab Raid event.
After you use your 10 Billy Coen files to get him, you can increase Billy's Star Tier rating by using Legendary Universal Hero files, but you can continue to use more Billy Coen files if you want to keep spending gems on special exchanges, or vaccine lab tokens. Or, you can use a combination of both Billy and Legendary files.
If you don't see any of these ways to get Billy Coen files into your game, your world creation date requirements may not be met. All you have to do in this situation is wait until your server is old enough to add Billy.
