In my short time playing, I’ve only ever played, knowingly anyway, with one serving member of the forces.
I happened to be attending a game on my own for once, and he was alone too, so we ended up playing together for the session and I have to say, it was one of the best afternoon plays I’ve had.
Fundamentally it was different to how I normally play, and basically pushed me outside my normal “I’m a pussy” comfort zone. I was far more aggressive than normal, egged on by the novelty of his training and little nuances. Taught me a lot; nothing tactical or anything like that, but more about grabbing the bull by the horns and not being such a wet flannel.