I really enjoyed Death in Helmand. The plot kept darting off in unexpected directions, meaning I could never quite predict what was going to happen next. And the end was a real curveball.
However I had to knock a star off for 2 reasons. Firstly a minor one where a character was a nephew, then became a son, then reverted to a nephew. Secondly, one of the characters suffers severe injuries - these end up being glossed over and almost forgotten about, and he dives back into action, when in reality he'd be laid up in a hospital bed.
Looking forward to the third book in the series!