Em773ER
On the 777, S/O's do not fly 200 or 300...... Only -ER as it's the only one that requires one. F/O's and Captains fly all types with one rating, it's the same aircraft, not like the Airbus.
Patterns and destinations for each aircraft always change, Except for Australia which will always be an Airbus. Patterns for S/O on the Airbus are pretty bad. Not much long haul anymore and mainly Australia and Middle East. 777 and jumbo get the better destinations, but you'll only get 24 hours anywhere. Enough time to sleep, eat, and go back to work. Enjoy!!!!