The Builder, thanks for your kind words. Even now, TV programmes, books and films with military settings constantly surprise me with the silly inaccuracies of their presentation of relevant situations.
For instance, the writer, director etc often seem utterly unaware of just who addresses whom as ‘Sir’ and who doesn’t. Saluting procedure is pretty-well set down in real military life, but they appear to know nothing about it. These are just two of many silly little instances where - rather than counting on an editor who may have no relevant experience either - paying an ex-squaddie a few quid to advise them would avoid such errors.
I mention this simply as a bit of advice for your writer friend…if he has no military experience himself but his novel involves a military setting at some point, get him to ask someone who does have such experience to vet what he has written.
Of course, 90-odd percent of viewers/readers have no idea mistakes have been made anyway, so perhaps it doesn’t matter, but they do annoy people who do know! Cheers