Run straight ahead and to the right. Blow up the metallic bomb using a thermal detonator. Head up the ramp. In the next area, go all the way left to find the target.

Bounty hunters usually worked alone, but occasionally formed partnerships. Partnering with a bounty hunter could be a very dangerous business, though, as they typically valued their personal gain—and survival—above that of their companions. Despite their fierce independence, their reputation as " Jedi killers" made them valuable allies of the Empire. There were strong rivalries between bounty hunters and smugglers, most obviously seen between Boba Fett and Han Solo, respectively.

Use Boba to grapple to the top level and fly/build bridge across to next area. Head forward and past the 4 levers into the next hall, there will be a Bounty Hunter door to the right. Go through and go to the end of the hall. Walk on the two panels to reveal door pieces. Build the door to reveal R2. When you start, shoot the blue panels beside the raised bridge to lower it. Head across and straight until you came across another raised bridge on the left side. Lower it and use the first grapple point you come to. Head left all the way with the grapples to find the target. Change to Boba and go all the way left (you can fly over gaps) When you reach the end, jump on the purple boxes and fly up to Yoda. Head to the right till you get to some stairs. You'll see the target above. Shoot the bombs on the right to reveal a grapple. Use it and head up to meet the target.

Run right until you find a yellowish gate in the wall infront of you. Blow it up and enter it. In the next area, use 4LOM on the R2 panel to reveal a path to Mace at the end of the maze. When you start, kill all the droids, then switch to 4LOM. Sprint down the hall, then use 4LOM on the protocol droid panel at the end of the hall (before turning right) to enter and find Qui Gon. Change to Boba and fly over to where the stormtroopers are. Grapple up and head through the open door on the right. Once inside, head into the door in the NW corner of the room. Keep going till you reach a balcony. Head through the door on the left. When you arrive in the next area, shoot the cameras in the room and build the control panel, then use the levers. Once the next door is open, use the 3rd set of levers on left side of the hall, then head in between the same set of levers which will allow you to find the target.

Search for Bossk in Niima Outpost on Jakku

Run to the right until you find a metallic destroyable object. Destroy it with one of the hunters and you'll find JJB in there.