Buring WW2 Mosquitos were used as pathfinders using radar and radio to direct aircraft to a target. This mission is a demo to simulate OBOE. Different beeps signify if you are flying too close, too far or on course (a very big arc). At a given point you need to fly straight and level for a fixed period of time at a fixed speed, height and direction and then.....drop. You can hit the factory at night fr om 20,000ft.....but even a near miss is enough as B17s will carpet bomb the area wh ere you bomb landed so as long as it's a near miss the B17s will clear up.