Try this out go to the scenario MC80 vs I-CS dock your xwings, then kill of the strike crusiser and the other one after that move the liberty in clear range of the tie bombers. When i did this the liberty did not fire on the ties it did move around like it did but after 5 min all tie bombers were still alive. ( If the Liberty has no laser turrets that might be the problem) PS The tie bombers left engine isnt there i know there not textured but the right one is correct and the other is like a black dome