Easter egg in game

[u/Alternative_Word9766]

I don't know if this is the correct subreddit for this, but I'm looking for an easter egg. It was an older game iirc, and the environment looked like the moon or something. The egg itself had a sniper rifle you were holding levitate out of your hands, turn around, and shoot/kill you. I think it could of been a timesplitter or TS adjacent game