@Pinnball
At my assessment we were nearly 60 people, cut down to 14 and than to 7! It depends on the region u are aplyying from! I would think that many people from Far East would love to fly for Middle Eastern Airlines and there are also many people working for them from that region! I think that there will be many attending but it depends on the recruiters how many they invite!
The process is pretty easy! Just be natural, helpful, kind and professional dresed and show your good communication skills and you will be fine hopefully! Last but not least you need a little bit luck!
The recruiters are very professional and they know who to pick out! After the firstz big cut you must be aware of your body language and your outer apperance cause from this stage on they will be obesrving u carefully!
Good luck my dear and PM for any help you might need!