Interesting. Looks like the german riflemen are shooting blanks. No recoil. To be expected I guess. I like the Marine tactics better. Call in an M1 Abrams or an A10 Warthog as seen in the Nat Geo Documentary Homeward Bound.
Can't watch the video as the girlfriend is sleeping, but can't they be summed up as support the machinegun, carry ammo for the machinegun and provide security for the machinegun?
Machinegun.
Edit:. Damn I want that MG34.