MG42

From Call of Duty - Wiki on Neoseeker

The MG42 is a machine gun with a high rate of fire, but a low reload time. Its attachments include a bipod, so if you're near a ledge it can easily deployed into a turret. Usually whenever some of your friends are sniping, help them out by deploying it in a spot where a ladder comes through, giving your friends more secure cover, and one less way to be attacked.