EditorBFG said:Crafty Games has put out a book of d20 Modern base classes for Spycraft. I wonder if that might help bridge the gap. Blood & Fists + Spycraft, cherrypicking what you need/like from either, might be tenable-- as far I'm concerned, if there's six ability scores, saving throws and a d20, it is compatible.
It would be nice to see these two rival masters united by fate and revenge.