Foreign FO same as Captain but without the " negotiating power" some guys hoped for a string of triple offs and were disappointed. Also beware SHT OPs rules have changed here in Turkey, it used to be min 7 off a month, distributed as one "pair of days" first half of month one "pair second half of month, but new rules allow 2 days off, duty, then 2 days off, leaving only 3 single days for rest of month..in fairness, 8 days a month is normal but as two "pairs" and the rest single throughout the month. Std pattern is 5/2 6/1