So I found the Queen of Spades card in the Cosmodrome, Old Russia on the mission Cayde's Stash. I was wondering if it could have a larger significance in the game. I know that it could just signify Cayde's stash location, like a pirate marking his hoard. But...
1) It is a spade and Cayde-6 seems to have an affinity for the symbol. He has it on his shoulder and likes that Banshee-44 incorporates the symbol on the Ace of Spades hand cannon.
2) More interesting is that the Queen of Spades is a title for a Russian novel and opera, quite the coincidence given that we find it in Old Russia. That said could there be a Rasputin connection? Rasputin does love to recite Russian literature and listen to Russian classical music. And Rasputin ran/controlled the Cosmodrome and Colony Ships during the Collapse.
[spoiler]Note: So the Easter Egg card is a Jack of Spades. Each suit meant a different arms company, except for Hearts. But there are two Jack of Spades the Egg and the one next to the Stealth Drive, but why the Queen of Spades at the console?[/spoiler]