Swearing among the squaddies, yes, plenty, and probably in private among the officers but openly? I'm not sure the army would have allowed it and I would be disappointed in the army itself if subordination wasn't slapped down pronto.
The Irish chap in the documentary ( I forget his name) was a complete psychopath and I would imagine when seeing him portrayed in the series many people will think that his character presentation is way over the top. I’m still rewatching the documentary with Mike and I’ll be interested to see how I feel about the tv series when I do start watching it. I can’t remember the last time I channel hopped and fond myself instantly transfixed by something ( when it happens it’s usually something from Storyville).