TheHealingDoctor
Heavy Machine Gun
If you see 'LMG' the 'L' stands for Light
Basically, it's a high-caliber machine gun; typically in video games, HMGs are used for emplaced defenses, such as when you get to the point in a first person shooter where you have to defend a small location from endless waves. Really high rate of fire, really good damage, and in this case would be less than useful against shields.