Sadly, due to budget cuts, the British military has had to exchange out real rifles for paintguns, as modeled by a gleeful Prince Charles:
Prince Charles, Prince of Wales (in his role as Colonel of the Welsh Guards) shoots a paintball gun after presenting leeks to mark St. David’s Day to the 1st Battalion The Welsh Guards at Cavalry Barracks.
Of course, that is nothing like the Russian Navy. They have opened pool halls on their submarines to make a couple more rubles:
Russian Submarine Pool Hall
I would hate to scratch.
I left Scotland when I was 16 because I had no qualifications for anything but to join the Navy, having left school at 13.