Onyx - Mjolnir

SPARTAN-051, Kurt, jumped into utter emptiness. It was a hundred-kilometer drop to the moon under his feet. He mentally made the adjustment to the free-floating world of space, and noted that technically there was no "under" or "above" in spacejust vectors, masses, and velocities.

He switched on his reverse-angle camera and saw Kelly and Fred jump from the lock of the prowler after him. He knew not to turn his head to look. The motion would make him gyrate out of control. Besides, in the vacuum-enhanced variant of MJOLNIR armor, his mobility was a fraction of normal…

…Kurt watched in his rear-angle display as Kelly and Fred activated their MA5B
assault rifles. A data cable linked each rifle to their T-PACK microprocessor to
give the proper counterthrust when the weapon fired.

- Halo: Ghosts of Onyx, Chapter 3