Modern Warfare. I didn't like BFBC2 that much. I looking forward to BF3 though. I spent countless of hours on BF2. My main profile, plus alts. And 550 hours is not accurate because I played a lot on unranked servers.
His sentence means that he didn't dare to ask, because he figured this was an abbreviation everybody knew about. And asking would be kind of embarrassing. Although there is sincerety in what he said, I believe he kind of also meant it as a joke. "