Urban Terror?

[RIPBillyMays]

Urban Terror feels a little clunky in a lot of ways (server side hit detection and very rigid recoil, for example), but it's a pretty fun game. I think it's a perfect mix between tactical shooters and arena shooters, it has all sorts of Quake-style movement features like circle jumping and walljumps and crouch sliding, but with dynamic crosshairs like you'd see in a tactical shooter.

Playing it feels like being a part of a big, over the top action movie.