I have this TV, gaming at 4k and 1080p depending on the game. I think Battlfield 1 uses HDR , but I am not sure.
It is a very bright TV, at least for me in a dark room.
I am happy enough with the on board speakers, I sit 4 feet away, it sounds good enough and I don’t have to clutter my desk up with more stuff. There is a audio out plug on the tv if you want to plug in headphones, which is really nice.
This is a top and bottom edge lit screen, so I have noticed some very mild light bands on a pure gray screen (battlefield 1 fog especially). Blacks are even and quite good.
No motion blur issues, make sure you have a new HDMI cable that supports 4:4:4 @ 60hgz.
Overall a really good screen, I got mine on Amazon. :)
I talked about it more in this thread: TVs in Late 2016