The M2E2HMG is a mounted Heavy Machine gun in Spec Ops: The Line. Since it is mounted, it can not be moved from the location it is found in. Unlike the Browning M2A2, it has a shield to offer the operator greater protection from enemy fire in combat.
Use
The gun typically has a 130-160 degree field of fire. It can also be flipped in the opposite direction, if approached from that side. The operator may also crouch while using the gun to protect themselves, but doing so will impair their ability to aim. After extended periods of uninterrupted fire, the gun may overheat and can not be fired until it has cooled down.