Thanks to longtime Warzone and Modern Warfare leaker @ProtoWarehouse on Twitter, it seems as though there's a way into the game's Bunker 6 that hasn't been attempted yet - a new Green Keycard.
Will Green Keycard Open Bunker 6?
Now, it's worth stressing that players can already access Bunker 6.
While some have been able to glitch inside, others have been able to get inside with the Red Keycard, the Green Keycard could offer a fresh perspective.
Check out Prototype Warehouse's tweet below.
This follows on from keycards being abruptly removed towards the tail end of season four.
As Infinity Ward continues to crack down on data miners, we might see fewer and fewer hints, but the community is evidently hungry for more news about this year's blockbuster shooter.