Strange Dead (spawn ??) or hacker ?

[Amp4hilyon 3]

Hello (official servers)

This is my first post on the forum (my english isnt very well but nvm)
i want to show u my last short play, which i travel to Green Mountain and died in a strange style

https://streamable.com/5ke522 -this is the video (died at 1:44) 😞

what do u think about this ? sry there was no sound probably cuz i played with head-phones (dunno ??)
and now, when i arrive to the location, first what i notice, was the closed main gates at the entrance, while the other 2 doors were open (the infront main building with a floor and the small office on the right, so im calmly crawl into the first doors to check the office and  wait a bit while detecting the place/environment
so after a while i go out and start checking all the building
the one strange thing was the one build on the left (where i died) cuz the main doors were closed (the tower were closed too) so this was strange for me why half of the buildings were open and half not but...

it was impossible for some1 to detect me or shoot me from the outside while i was behind the wall with closed doors
do u think there were a guy who closed the main entrance and get closed in the right buuilding for safe point and just relog after some mins and spawn and ocassionaly, lucky headshot me from the behind ??

this was no luck for me or a hacker ? i didnt notice any other sound while chilling in except zombies screams and slooow walks 😞
this was sad cuz i wanted to go log-out at the moment and go sleep cuz work/job at the morning and this happens... 😞

ehhh, i just dont like stupid dying, its okay for me if im die in a shooting but while sniped from a nowhere in the head without any chance to react were not satisving 😕
the only good here was i lost the AK-74 at most and ewentualy shovel, some food/medics and my clothes, cuz i know to not getting all the main weapons with, and lost everything with a single accident, so its finally not bad 😛

what do u think about this dead ? thanks for the answers 🙂