Quite like the Chris Ryan books. "Killing for the company" is my favourite but all of them are good really. "The one who got away" is his version of events about Bravo Two Zero in Iraq. Read that when your having a crap day at work and realise that some jobs are more, shall we say, challenging

Andy McNab books aren't all that though, nowhere near as good.
Sven Hassel is a good read to. Bit oddly worded because it's been translated litterally, so sometimes words are used out of order etc. Still a great read though. He's a Dane who joined the SS because Germany was closer than the UK (His words

) but didn't like it so tried to do a runner. He was caught and sent to a penal batallion, fighting on the Eastern front, Berlin and France. Basically, he' s a nutter
There's obviously Fever Pitch, the Adam's book and Merse's (Don't see where people are coming from when they say he's arrogant, I just see it as him sying what happened. Not proud, not ashamed but funny).
I agree with the earlier comment about "Fatherland", bloody amazing book