I also had this exam today.
And I also, had to do questions 1 & 2 as we didn't learn the Empire in much detail. The first question I found pretty straight forward, but had no idea how to do the second. We went to see our teacher after, and he even said he'd have trouble answering it. With everyone complaining I think that there will be some kind of complaint somewhere, as him crowning as Emperor was not highly featured on the specification, and if not, grade boundaries should be very low.
It's over now, and all we can do is wait!