This has been happening a lot. There is a smoke screen or something has exploded and I see smoke..I get killed through the smoke and say wtf how did they see me. So i watch the killcam and guess what. On their screen there is no smoke at all. So whats the deal with that?
what he means is that the smoke doesn't show up in the kill cam. makes it easier to see the person dying in the kill cam. It has been like this since launch. nothing new.