How does type rating work for this one off kind of plane? How do you get hours in the one plane, and is there a simulator? Also what do you do when the plane you're rated for is destroyed?
There is a sim; https://commons.m.wikimedia.org/wiki/File:Antonov_An-225_fli... Not sure if all of the cockpit is in that sim; there are 6 seats! I expect the pilots all started out flying other types, so will go back to doing that.
That would be correct, like the AN-124 the An-225 has a crew of 6 (plus 2 loadmasters I think?). While the planes were retrofit and modernised they kept a pretty heavy crew scheme, nominal crew is 2 pilots, 2 FE, and 2 comms. Might be that they didn’t see the need to change the crew scheme, or might be the origins in strategic military transportation (the C5 also has a hefty crew with FEs).