John Browning = American Super Genius. Invented ALL modern firearm concepts still in use today, from the venerable 1911 semi-auto pistol, to several machine guns, semi-auto shotguns... not to mention military rifles of the late 1800s, including the 1886 Winchester 45-70.

It's amazing how the M2 Is one of the first machine gun Ever used in real Combat And it's been modified Hundreds of times over Since the beginning And is still used today as one of the best Heavy machine guns in the world By the US and Our allies Used by Almost every branch in a different version

when I was 5 years old my Dad was in the National Guard for 14 years, drove a half-track with 2 (or 4?) 50 cal bmg's in a turret. he said he fired it one time during 2 weeks duty at Lewes, DE at a drone airplane flying over the water at the beach. he said that another gunner down the beach fired one shot with a 40mm AA and blew the drone into a million pieces. he said the drone moved so fast it was really hard to track it even with tracer rounds (every 3rd or 5th round). his cousin shot down a German ME-109 in Italy while serving with General Patton's division with a single 50cal bmg and got a silver star because the plane was diving down to attack the air strip they had captured. My Dad said he always admired his cousin for doing that after he found out how hard it was to hit a moving target.

Good shooting there, like the navy's version of the spade grip trigger group. However with both your 240s and M2's a certain former grunt would recommend using larger Chicken-Shields. Reasoning: If the bad guys are that close your gunners become a great target.