Our strategy for Angry Birds Star Wars Hoth level 3-8 is to fire the Blue Bird pilots under the initial platform, into the snow next to the AT-AT. This should cause the tower to topple on the left side. Time your shot with Luke to both pop the leftmost storm trooper and redirect the lasers with the lightsaber into the TNT within the AT-AT. If needed, use Blue Bird pilots to destroy the rightmost ice structure.