There are seven characters in Marathon, known as Runner Shells, and each one comes with unique abilities to set them apart. Even if you've played old playtests for the game, the classes have changed quite a bit at launch—for one, they're not characters in the 'hero shooter' sense anymore, they're more like classes.
Below, I'll explain each of the seven Marathon Runner Shells and which ones I'd recommend you use if you're serious about your survival on Tau Ceti. It's not known for being a forgiving, friendly place, whether you're met by robots, aliens, or other people.
