I ran into something of a big meanie lol in a party finder, who was a tank. He did his job fairly well but did screw the party over a bit in Titan ex. We were doing excellent with no echo buff our first group but healer made a mistake (might've even lagged as I experienced a lag spike but still managed to survive) and we didn't have trouble with gaols or heart or anything...our DPS was pretty great.

After the healer died the tank (belonging to an elitist FC) said he had the highest DPS and exited the fight.

I was just curious, how possible is it that a tank would be able to outDPS the entire group (not combined just the highest individual group) while still tanking? Or was this guy just lying?