Never seen or heard of a Yabanci FO being upgraded on any fleet to Captain, so don't worry about seniority list..Regarding 777 , still moving foreigners over from 737 and some new guys are coming directly to 777. University degree thing has been done to death on this forum, nothing new there. What has changed is ex military guys can get upgrade 3 years after LPC date, so " fast track" for them. 6500 hrs is only 6.5 years, not long in the industry to become a Captain compared with other airlines circa 10/12 years.