The TF141 had a mission in the snow, they had the order to have no mercy if they found any enemy. They walked through the snow, Gaz with his pistol reloaded.

You were of course their enemy, you were patrolling near your base, walking through the snow, getting used to it, you quickly checked everywhere as you moved forward

Gaz, Ghost, Price, Soap were walking, The night was beautiful, the moon illuminated the soldiers' path. They walked for hours until they reached an unknown point, Soap quickly stopped when he heard something

Soap "Identify yourself and come out with your hands up"