Looks to me, in the 2nd picture, the guy on the chopper has a real player that isnt bright green behind him. Does it look like that to you? Looks a little fake, I dunno.
However I have heard there is no fog on maps like Hamburger Hill, and those screenshots do look like there is no fog.
Maybe those 3 have been wallhacking for a while, but now that the hack has been spoken about, they want to look like heroes. Who know's.