I've replayed the scene in my head many times

I've replayed the scene in my head many times. Although I don't remember it clearly (due to shock, I imagine), he said I turned to look at him as he approached, indicating I knew something was about to happen. I guess I assumed he was going to tell me something more, but all of a sudden that innocent gesture of a poke in the ribs had assassinated me. All that training with accuracy and dodging and rapid firing and quick reloading was over. It was a legit tactic, but it was really annoying because at the onset of the game, the other members of my team and I agreed we wouldn't betray each other, but he didn't say anything. Unfortunately, the game I had trained for was very different to the one that played out- kills weren't made in isolation: they weren't one-on-one assaults when no one else was around. One person walked up to someone in a crowd, shot them and walked off. Hardly stealthy, but that was the rules, and it required a different tact. Unfortunately, I didn't get a second chance to try again- I would have gone straight for identities and information rather than acting casual and bothering to holster all my weapons, unlike everyone who carried their guns around casually in their hand, locked and loaded. Okay, I'm still a little annoyed it wasn't at all about stealth so much as deception and betrayal, but there was eventually another round with modified rules.