So, I downloaded DayZ Origins with DayZ Commander and joined The Gaming Cabin DayZ Origins server. When the game was getting ready to launch steam asked if I wanted to use my Arma 2 OA cd key or one of the keys for the various other Arma 2 expansions, which is odd it normally doesn't ask this. I didn't select any of the keys and closed the window the game then launched normally. After spawning in and looting with a couple buddies for several minutes, my screen flashed like it does when you change clothes. All of a sudden I was face to face with one of my buddies and shooting him in the face with my makarov even though I was not touching my mouse or key board. I then got kicked by battle eye for setpos() or something like that. I logged in again and picked up a makarov, got teleported 100m, fell over dead, and got kicked for setpos() again. My friends said I then went on a wild killing spree with an AKS Kobra. I got on the servers teamspeak and their admin said they had evidence I was hacker. He said I shot myself in the head with a makarov and looted items from my body, but at that time I was already kicked from the server and sitting at the main menu. He also asked why I have two GUIDs and I told him I don't know. My computer is private and only I use it and I do not own multiple copies of Arma 2. I was able to log onto the same server later, so I am not banned. But, I am wondering if my cd keys are compromised and if there is anything I should do.