You are in a dorm with 2 other people. A fire alarm goes off, one roommate runs outside without caring about anyone else. Do you wake the sleeping person or do you run off yourself?If1.) You see no smoke or fire 2.) You see smoke but no fire3.) You see smoke and some fire
Who maintains the road? Who plows the snow? County, state, city, township? Those are the folks. If it is a through road, they arent going to put in speed bumps
Could it alternate between the two? Ahhh that's like extreme opposite sides of the spectrum, haha. Cause I love being able to swim and cool off and tan, but I also love getting warm next to the fire, or, ya know, someone else (;
Only the British adopted a machine gun specifically for tank use - the Czech Brno vz.37 (Besa) and that was only because they had no alternative to the water-cooled Vickers. Water-cooled guns have obvious problems in a vehicle installation such as the large hole they require in the armor, protecting the water jacket and feeding the thing with water. Otherwise, pretty much everyone used an adaptation of their standard infantry machine gun. The hull (bow) machine gun was a particularly useless device that required more scarce manpower to train and feed and who consumed volume inside the vehicle that could have been better employed storing ammunition. I have no qualms with the rifle-caliber machine gun as a co-ax. There is a good argument to be made that a 12.7mm weapon would be better suited here than on a flexible mounting as it could take advantage of the tanks fire controls but there just isn't room in a WWII turret. External machine guns, although usually referred to as anti-aircraft machine guns were anything but, even if the German's did give theirs ring sights. Against aircraft they were hopeless and suicidal to employ. In the ground role there were times where the big Browning definately came in handy but I like the idea of a flexible rifle-caliber weapon too. Ideally one of each, with the loader responsible for the big bruiser. But that's a bit advanced for WWII. It is even a bit advanced today as few tanks employ more than one external MG.
Well I know the most commonly used was the 30 caliber mg for the US.