I've been killed on:
Video of the incident:
https://www.youtube.com/watch?v=JfxLR0LBRyw&feature=youtu.be
I did not find any other location to report cheat.
Also I wish to be contacted because I just bought Livonia extension but it goes without saying that seeing hours of game anhilated so easily by a cheater makes me ask for a refund of the DLC as I'm not likely going to be playing this game anymore.
I had similar problems for the last 5 days or so. Have been killed several times by speed hacking or wall hacking players. I can submit video proofs if required. Have tried numerous official servers, both Chernarous and Levonia, the number of hackers goes up by the day. Hope this will be fixed soon! Will stop playing DayZ for now.
Kind regards