@mastergrief
Elevators are for civilians who haven't been augmented with MJOLNIR power armor. Real Spartans take stairs three at a time, building leg strength for teabagging fallen enemies.
The UNSC didn't spend billions on my genetic enhancements so I could stand awkwardly in a metal box with strangers. Stairs build character. Elevators build weakness.
Let the Flood-infected masses have their vertical transport tubes. I'll be sprinting up 50 flights while they wait for their little ding sound.