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Pretty simple.
First one is the laser bug that if you view the troops or smoke on the edge of the screen it will creat that kind of effect, doesnt happen from top or bottom mainly corners of the screen or on the tips and edges. Happens with fire, smoke, and any icons.
2nd one is pretty simple, panzer bug. Suddenly i could no longer swing the guns instead the gun would stay inplace but my viewpoint would move. This meant when i fired the bullets came from the gun and then into that direction i was pointing.
3rd on is easyer, spitfire V crashed it left and right wing but could see fire from the damaged wings.