Destroy the shipyard, which is located on the orbit
Shut down the turret with tractor beam
Earn 500 000 Force Points
Find 15 holocrons
You are again on the junkyard. Jump on the lowest level and kill first opponents. Next jump on one of the shelves. On the other side you should be able to see one of the spaceship parts, which is similar to sphere. Jump to this place (X+X+L1) and enter to the room on the right side.
Jump on the lowest level. You will find there the holocron (Sigil Power Crystal) guarded by one of the Jawas. Take him and return on the top level.
After a while you will reach something like small barricade. On the left of this place you can find corridor, which is leading to the holocron.
Return to the barricade and continue moving straight. You will reach the obstacle from metal bars. Treat her with Force Push. Move forward. You will reach the collapsed bridge. Jump on other side (X+X+L1) and keep running.
On the end of the footbridge (inside the ship) you will find next holocron. Don't forget to take him.
Jump on other side of the destroyed ramp and continue running straight forward. You will reach the open area. There you will have to beat some Purge Troopers. When they will dead, take the holocron, which is located on the right side, above the round platform. The next one can be found in the niche, from where ran out the horde of Rodians.
In the area will inbound gunship, which will drop the container with AT-ST. Destroy the machine and begin jumping on the footbridges, which are leading to the exit, located on the considerable height. When you find yourself on the level of the levitating holocron, jump to grab him (X+X+L1). After that, return on footbridge and continue moving forward.
Take another cube. After a while you will again reach the open area. First kill the snipers. Next eliminate the Purge Troopers. Keep going in the direction, where on the big height is hanging the holocron. Jump on the platform, which is located near to him. In certain moment, the big hatch will open and from inside the hall will go out AT-ST, Purge Troopers and some stormtroopers.
You should find yourself in the place with flying containers. Grab them with Force and throw in AT-STs and other enemies. When you kill them, approach the edge opposite to the holocron and jump in his direction (X+X+L1).
Enter inside the fabric hall. Eliminate the sniper and take the holocron, which is located on footbridge placed across the hall (Force Talent Sphere).