I have reservation on hold that is involves travel from MKE-IAH-SFO-LAS. All flights are booked as and operated by United, except for the IAH-SFO leg which is booked as UA operated by CO. I booked them by calling United because I have a paper voucher to use, and am now confused as to the booking class that will be reported when I credit my miles to Aegean Airlines. It was booked as a first class fare, with both the United and Continental websites showing "First (A)" for all three flights, though containing a fare code of HUAUPN. The reservations agent confirmed that it is booked into "A" class (which earns 300% of miles on Aegean), though the fare code starting with an "H" confuses me. Also, I am confused as to how the second leg, marketed by United and operated by Continental, will credit to Aegean. The CO website says it is booked as "First (A)" but to my understanding, CO doesn't have an A fare bucket (at least not according to Aegean). When crediting a CO "F" fare to Aegean, it only earns 125% of miles, but with the merger and UA/CO now operating under a single certificate, I am wondering what fare class will be reported to Aegean. Does anyone have any experience with this or any recommendations on how to find out more?

Thanks in advance for everyone's help.