Jason Dante's mercenaries is one of the two hostile faction featured throughout Uncharted: Golden Abyss.
Jason Dante started to think about hiring more mercenaries at the end of "Proving Your Worth" while talking to Nathan Drake. Jason Dante's Mercenaries started to first show up in Chapter 2:"No Prison Tats" when Nathan Drake and Marisa Chase spotted one of them. Jason Dante's Mercenaries last showed up in "Getting My Hands Dirty" while Quivira falls apart. They wield a wide range of weapons as can be seen below.