I pass through Doha a few times a month & my father fly's 777's for Qatar.  Basically the airport is just a sea of Qatar airways aircraft, they have a massive fleet and only one hub.  You see the occasional Gulf Air/BA/FlyDubai aircraft squeezed between them all. 

 

Regards

Thanks Rob, that's just the impression I had at my first virtual visit there. (although of course I have included AI flights of all important airlines flying to Doha in my sim.)