The sword is base coated scorched brown (actually rhinox hide, but they're similar enough) heavily stippled Steel Legion Drab (Calthan Brown is again, v similar) then more targeted stippling with a bright orange (slayer, but any will do)
I threw on some Nikilakh Oxide, first time I've used it and I'm quite please, and lightly dry brushed the raised edges with lead belcher. (But the main blade edge is done with Vallejo liquid metal silver)
Same technique, but no Oxide and more heavy on the silver, especially on areas where there would be wear or movement.