I love the Arkham universe, love the style and most of the designs. I wanted Jason to be gritty and seasoned, he climbed his way to the top of the crime food chain before he returned to the bat family fold and it should show. I thought giving him Deathstroke's sword as a trophy/weapon would convey the fact that he's not that freshly resurrected Jason we know. I tried to give the helmet heavy damage, not sure if that comes through, and the unmasked head has the older looker so you know this isn't a young Jason. I view this as his appearance later down the line in a squeal.

Recipe-
base- Batman legacy Batman
jacket- dcuc starman
arms- dcuc mr terrific
hands- dcuc jonah hex
unmasked head- modified batman legacy nightwing head, trimmed down the chine and hair, the masked head is a shaved down batman