Ohhhh... good old memories. Ill never forget the first time i got killed in DayZ by another player. There already werent any bandit skins and i surely didnt know about the heartbeat thing. I announce myself before coming into Elektro. Go into the school with a PM - there were three guys on the first floor. I looked at them as i entered from the right side entrance, all happy at the prospect of making some buddies, one of them looked at me, long enough to aim for a HS, and just pulled the trigger. All in all - 2 seconds of contemplating humanity and asking myself the eternal question: "Is he going to fire?". He sure did. Now, after having been shot many times, outright betrayed over a stupid common assault rifle, eaten a couple times by Zs... i have little faith left in humanity. Generally i will shoot on sight if i begin collecting rare loot, without announcing a single thing. Right now im in a ghillie suit with a silenced M4 and a G17 and you better believe it - at the slightest hint of being spotted i open fire. It would be pretty stupid of me to type in global/side chat "Hurr durr guys im coming into Stariy Sobor to loot some mil-tents, dont shoot". I will also most likely fire at people looting what i need. If i see a player and warn him over direct that i have him sighted so he better leave and he doesnt reply or begins sudden movements, i shoot. After i got shot in the back for an AK-74 Kobra... i seriously learned my lesson. But if im just running around with a PM and an Enfield near the beach i gladly announce myself when coming into town, offer help to other players, share supplies, cooperate etc.