Claim every working Operation One code here when they become available to help your progress in-game.

Operation One is a Roblox tactical first-person shooter where teams of attackers and defenders use strategy, gadgets, and teamwork to complete objectives. The game emphasizes close-quarters combat, breaching defenses, and gathering intelligence to outsmart the opposing team.
There are currently no active codes available that you can redeem for rewards.
There are no expired codes for Operation One.
When codes become available, you can redeem them easily in Operation One by following these steps:
Launch Operation One in Roblox.
Tap the cogwheel button in the top-right corner of the screen.
Type a code into the 'xxxx-xxxx-xxxx' text box on the left.
Tap 'Redeem Gift Code' to claim your reward.

If you experience any issues inputting a code, check that it hasn't expired and that you have entered it correctly - keep in mind that codes are sometimes case-sensitive so it is recommended that you copy and paste the code whenever possible.
If you find the code isn't working, it could be due to any of the following reasons.
Don't run into a room without checking it first. If you have the RC Drone, send it through small holes, gaps under barricades, or camera vents to look for enemies.
You can use the drone to ping enemies without scanning them, so you can tell your team where someone is without giving away as much information.
Once you've found an enemy, move the drone somewhere safe and switch back to your character. You now know where the enemy is before your team pushes in.
You don't always need to blow a huge hole in a wall. Sometimes a small opening is more useful.
Use holes to check rooms, create new sightlines, or listen for enemies. Holes also let sound pass through them, so you can use them to hear what is happening on the other side.
If you're attacking, think about what you actually need before using a breaching gadget. A small hole can give you information without creating an obvious entrance for the enemy to watch.
Defenders only get two reinforcements, so don't use them on random walls.
Put them on walls that attackers could use to get a strong view into the objective. A reinforced wall also stops normal bullets from passing through it, making it harder for attackers to shoot through.
Don't reinforce every wall, though. Leaving some walls open can give your team useful ways to move between rooms.
Remember that reinforcements aren't indestructible. Attackers can use certain gadgets to break through them, so don't rely on a reinforced wall to keep you completely safe.
Sound is a big part of Operation One. When a player creates a hole, sound can travel through that opening.
So if you hear an explosion, breach, or other activity coming from another room, don't ignore it. It can tell you where the enemy is attacking from.
You can also use this against the enemy. Making a hole can give you information, but remember that the enemy can hear through it too. Don't assume you're hidden just because they can't see you.
You don't always have time to type or use voice chat. That's where the ping system helps.
Use the different contextual pings to quickly tell your teammates about danger, breaches, reinforcements, or other important things happening around you.
For example, if your drone spots an enemy near the objective, ping the location so your teammates know where to look. If you hear a breach, use a ping to warn the team instead of hoping they notice it themselves.
Good pings can give your team useful information without you having to stop moving or type anything.
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Find even more Roblox Redeem Codes here to grab the latest freebies before they expire.
Game codes can be released at any time, which can make them easy to miss. Luckily, there are a few things you can do to make sure you catch them as soon as they're available.
These include engaging with the game's community by following the developers' Roblox Group and regularly checking the game's Discord page. You can also get the latest stats on the game on their RoMonitor page.
If this page helped you out, feel free to bookmark it so you can easily come back for more codes later.