Lol @ 400k. That was me.
That was with water and tactical link at least lmao. Might have had Pulse or Smart Cover as well, don't remember.
I'm 195k unbuffed with a Brutal/Deadly/Meticulous AR. No accuracy inflation, just grip (don't think you can get a HE grip without it), and I think my flash hider maybe but I only wanted the stability or crit dmg (forget whats on the flash hider). Scope is crit dmg/headshot dmg/crit chance where I can help it and mag is firing rate. The double mag capacity and firing rate is the single biggest DPS bump on that gun.
Average 90-140k headshots vs elites with the AR and 600k with the M1A. I try to keep 100% uptime with pulse or smart cover depending on which the group members run with. With water, tactical link, smart cover, pulse, etc that goes up to 200k+ with the AR and 1 mil for the M1A. Yes that's 200k per bullet from an AR with 50% crits IIRC. With that kind of damage you can just shoot tanks in the face and melt them and not even bother with their ammo cans. With the talent for increased stability from cover, it shoots like a laser beam with no recoil too.
The best example I can give with all of this combined is being able to melt everything in the elevator in the second wave of Lex on the rooftop as soon as the door opens in like 3 seconds before anything even has time to get out of the room provided everyone else is geared (hey, I have to reload you know!)
The DPS number is BS. What matters is what you actually hit on a real target. Even paper targets in the firing range don't show enemy armor damage, % damage against elites, etc.
I was just having fun popping buffs and inflating my epeen with that screen cap.
It doesn't seem too far from the truth though when I can pop everything and mow a tank down in seconds without hitting the ammo can Though it's better to hit the ammo can then you can take out two targets in parallel and keep more fire off the group.