Chapter 3: Niima Outpost - Jakku Graveyard Flight
The last three minikits are going to need some pretty sharp piloting skills to pick up.
As you fly through the first section, shoot down four of the red arches to get the minikit.
When you reach the open area, look for the large grey structure with a tunnel running through it.
You'll find the minikit inside.
To get the last minikit, destroy the AT-AT walkers made of gold lego bricks.
They're almost in a straight line so once you find one, the other two are close by.
Blow up the last one and we're all done at the Niima Outpost.