Are we going to compare weight and praticity of a bayoneta versus a katana? How many times do you see someone running with a knife in a WW2 battlefield?
Less often than you see somebody running with a katana...
Katanas were actually pretty common. Not being used by the Allied forces or in the European part of the war, but still.
Bet Shiken that COD would outsell Battlefield in 2018. http://gamrconnect.vgchartz.com/post.php?id=8749702