This is a larger sized MOC of the Battle of Hoth, featuring an outpost sharing some elements of Echo Base and the surrounding trenches and snow-fields.

It has functional doors, defense turret, trenches, a command center, hanger, and other details built into the MOC. It is primarily brick built, although it still cost me ~$225 in parts although I can confirm all parts (at time of writing) are available on Lego's own prick-a-brick.

I have built this and can confirm it is a stable build and looks great.

Instructions are large so I broke it up into 2 parts. That being said, this is a complex design, particularly the ice walls, so I highly recommend you use the .io file in conjunction with the instructions to make it easier to build.