Halo Flood 44

It was dark, and a fresh layer of snow had fallen since the time when the noncom had battled his way up to the Control Room from the valley below.
There were guards, but all of them had their backs to the hatch, and didn't bother to turn until the doors were halfway open. That was when they saw the human, did a series of double takes, and started to respond. But the Chief was ready and used the energy weapon to hose them down. The Elites jerked and fell, quickly followed by several Jackals and Grunts. Then, just as suddenly as the violence had started, it was over.-Chpt.10 pg.294