Wow Ferd, talk about culture clash. When we start intermixing ER crews there are still some things to be worked out yet. In the briefing we determine who gets the legs. Sometimes captain takes one and the two FOs either flip or see who needs landing the most. We don't split up T/O and landing usually.*
PF gets middle break so he is rested for landing. RP gets first and PM gets second.
*I have been the recipient of a split due to needing a landing and CAT III approach for my leg.