Would be at least 9.7 due to speed and bombload, also afaik it can carry 16 454kg (1000 lb) bombs
It may be defenseless, but it would still be able to get bases pretty easily with that kind of speed. Dunno if it has a bomb computer, but if it does, it could be fun for GRB bombing runs.
As usual, it would be interesting in simulator mode. Anything can be fun there since it’s not the same fixed rinse and repeat Air RB mode with a well defined META.