The Call of Duty games are packed full of Easter eggs - and Infinity Ward's Modern Warfare soft reboot is no exception.
It turns out Infinity Ward is using Modern Warfare weapon charms to reference the Modern Warfare 2 campaign - and that discovery has led fans to speculate that each Modern Warfare season is themed around one of Infinity Ward's previous games.
Eagle-eyed redditor AnalVor noticed three new weapon charms found in Modern Warfare as part of the game's second season battle pass directly reference iconic moments from the Modern Warfare 2 campaign.
Drawing a link between each of the three weapon charms highlighted, AnalVor suggests Modern Warfare season two is themed around Modern Warfare 2. When you consider season two added fan-favourite character Ghost and beloved multiplayer map Rust - both of which were taken from Modern Warfare 2 - the theory makes sense.
So, what do the weapon charms reference, exactly? The first weapon charm is a jumper cable, which references the moment in Modern Warfare 2's campaign when Ghost prepares to torture a bad guy with jumper cables. (Skip to 1:40 in the video below to see this scene.)
The second weapon charm is a petrol can, which is a reference to the moment Roach and Ghost are doused in petrol and set alight in the Modern Warfare 2 campaign. The third weapon charm is the gun General Shepherd (what a bastard!) uses to kill Roach and Ghost. You can see both memorable moments in the video below.
Infinity Ward art director Joel Emslie responded to the find with a post on reddit: "You're paying attention...good;)"
So, we have season two weapon charms as Modern Warfare 2 references. What next? Fans are currently speculating that season three will be themed around Modern Warfare 3 (following Ghost's arrival on the Coalition side for season two, perhaps Makarov will be a new operator added to the game on the Allegiance side for season three). If this is true, then perhaps Modern Warfare season four will be themed around Call of Duty: Ghosts.
And if that's true, fingers crossed Colin the dog is coming to the game.