When I was younger, I used to play Halo: Combat Evolved death match on Sidewinder. It was a map dominated by vehicles, and the ghost was my favorite among them. As a joke one time, I grabbed the Active Camo to turn my spartan invisible and then jumped into the ghost, which basically negated the benefits of my invisibility. Instead, it'd look like the vehicle was running completely autonomously.
I certainly do not remember getting any kills doing this. That wasn't the point of it.
I continued to lean into this style of play more and even made up a mysterious spy theme song for myself: "ghost-in-a-ghost, doo DOO dooo" which made it so you didn't even have to see the non-invisible vehicle moving to know I was inside, riding around and doing dumb shit.