I have to say that damage is impressive. The best damage I've seen from any Operative before does not even reach 400k. Not post 1.1 anyway.
Sadly, whatever is in the pic does not reflect anything I've experienced or seen in any of the Warzones before. I don't even know how that is remotely possible after 1.1.
It seems no one was attacking that guy, and he had a pocket healer(s); he probably was in a premade. The other team maybe were getting rolfstomped. Also, why so many players on that map!!
It could be any number of reasons that the pic did not show. If you leave any DPS uncheked, that DPS will be doing some nasty damage.
Either way, how old is this pic? Anything to show that it was post 1.1, or even post 1.1.1? And do you have other, more recent pics of such a performance?