This is a very underrated show. The two main reason to watch is Steven Knight the creator of Peaky Blinders and Jack O'Connell. So you have cheeky vulgar banters amongst the problematic soldiers allegedly created the SAS. Jack O'Connell always the dependable actor to bring in the good. Always thought he'll be more famous from BBC Skins days. In my opinion he was the highlight in Sinners as Remick. Also like how they incorporate British punk soundtrack over the series. It has that rebellious fuck the world vibe.

Origins of the British Special Air Services
Interesting