Music licensing in the US and UK is very different. Tour of Duty was obviously made in the US but the UK DVDs actually have the original music. They aren't cheap though. I think this set should have the original music. The comments about the US and UK DVD sets are merged together so I think the comments about not including the original music are people writing reviews of the US version.

https://www.amazon.com/Tour-Duty-Complete-DVD-anglais/dp/B009FAVMUS/