Straight ahead you will see a cave. Head into those cave and go straight. There is only one path at this point, so you will not get lost. Continue on this path, killing snow monsters as you go.
Eventually the floor will start to break under you. To move around you will have to jump from ice chunk to ice chunk. You have two choices, left and right. Head right for a holocron, then left to get across the ice field. Watch out for the snowballs that the Yeti will be throwing at you when you reach the last section of the ice flows. If you find them to be annoying just toss your saber at them.
Head straight until you reach a wall with a sheet of ice: it is blocking your path. Break the ice sheet with either your saber or a force push, and head on.
On this path you will see a couple of boulders on the ground. Take a second to stop here. Ahead there will be some stationary shooting droids. You can save yourself a lot of trouble by picking up a boulder here, and throwing it at the droids. Angle it right and you can get two droids with one throw. They sit on diagonal angles. Once you off the droids keep on moving.
You will run into a force field. When this happens, look to your left. You will notice a wall of ice is blocking the generator. Break them both to move through the shield. In the next room kill the soldiers, Then head up the ice steps to the top level. Here you will find a second force field. Follow the glowing cable to the generator. Jam it. The bodies of your enemies work well for this task.
In the next room you will see a broken elevator. Put a crate on it and you will be able to jump up and kill those pesky snipers. Once that is done you should head out the side exit. Force push open the doors at the end of the hall, and you will enter a circular control room. There is a broken elevator in the center of this room. Pull up the platform inside the middle of the elevator. It will go a few feet up. Then head to the back of the elevator. You will notice that it is blasted open in the back. Jump through the cracked hall onto the platform.
Once you are on the platform you will be able to jump up to the second level of this room. Keep pushing you way forward through the waves of rebels. Eventually, you will see the Millennium Falcon. The ship is being blocked by a force field. This field is being generated by not one, but three generators. Luckily, they are all in the same place. You’ll find them on the far left. Head into the room on the left and they should be on front of you. The best way to jam them in with the shuttle craft in this room. As they come out of the shuttle bays behind you, grab them with the force, and shove them into the open generator cases. Just be sure that the cases are still open. They do close after a while. If this happens, lock on with the force and open them.
Once the field is down you get to fight Luke Skywalker twice. Once as a Jedi, and once as a Sith. When he is a Jedi rely on your force powers. Once he is a Sith skillful saber work will save you. Always be ready to block his devastating force lightning.