So me and my buddies picked the game up a few days ago. Learning curve and all(played infestation quite a bit) slowly figuring it out. Well last night we were checking out the airport. Server timed out and we got booted. I found another server and joined. Once I spawned I instantly heard footsteps in the next room. Knowing my buddies had not joined yet. I Freaked out. There is a huge rush you get from close encounters. So I slowly walked out of the room to the next with my pistol drawn. There in the next room with his back to me is a guy fully geared with a m4 in his hands. Now normally I would not shoot and try and be friendly, but since I was alone(buddies were not in yet) he had gun in hand, and I had the drop on him, I totally just shot him in the back. I was shaking when it was over, not sure why but I was totally worked up about it. I found the entire situation very strange. I have ran across a few people in this game, some that were helpful to a noob, others that just ran. I have played PvP style games before. Im a old gamer(pushing 40) and have never had a game make me feel that way. I wonder if it was guilt or pure enjoyment for I had just done. Anyone else get that feeling.