I haven't p[layed much battlefield one, but I've got about 300 hours on mine or so and the only game I've noticed it on occasionally is witcher 3. I think twice in about 4 hours of playtime...almost like a slightly different color gradient briefly. It goes away and is atypical. Is that what you are talking about? Since I've used the monitor for like 5 months at this point and thats the only game that does it - I chalked it up to flukey wierd something or other.
I'm not sure I know what you're talking about in regards to the different color gradient. When it's happening it was when I was looking up and down vertically and it would ripple/tear briefly in the middle of the screen. I don't know if it's my video card which I would highly doubt because newer ones would be running the same (up-to-date) software suite. I am planning on going Vega when it comes out so that will be something to look for. I'll also try other games and report back.