Talking of things that crop AFTER you've written the book. Another old chestnut is that the Bren was so accurate that you could use it as a sniper rifle. Not only that, but the War Dept were actually going to use it as one!.
Some, less polite than me would call such stuff as pure bolxxxxx or horse sh........, er......., manure. The standard accuracy pattern for a Bren, even after undergoing a full workshop rebuild/repair wasn't even up to the LOWEST standard of that required for even a sub-standard No1 rifle.
What it really did excel at, was as the standard infantry section light machine gun. They call it a light support weapon nowadays. The Bren wasn't light, but by Jesus, it was good at giving fire support