Leonardo da Vinci's The Last Supper is a work of art. So too is Team Fortress 2. In a way. So it's only natural to see the two come together like this. Especially when the combatants are wearing their best hats.
Matthew 26: 21-23
21. And as they did eat, he said, "Verily I say unto you, that one of you shall betray me."
22. And they were exceeding sorrowful, and began every one of them to say unto him, "Lord, is it I?"
23. And he answered and said, "ENTIRE TEAM IS SPY!"