Honestly I'm surprised any good quality sets still have this issue. My Sony and Samsungs have options for auto pixel adjustment that moves pixels around on an undetectable level to keep burn in from occurring. I think the opacity slider from battlefield is probably meant more to see the actual action and not so much meant for burn in prevention, but probably ended up being a positive side effect they discovered. I've never heard of a game addressing this, as it's a hardware issue.