What happens if you survive 25 minutes [in Endless Vandal Swarm]?

You will acquire a Spectrum badge. A pop-up will come up on your screen. I don't recall if it comes up as soon as you reach 25 minutes or you finish the game after reaching 25 minutes. But that's our goal: you're above average, you get some kind of reward. And that's us testing the ground with rewards in Arena Commander.