When I bomb a bridge over the clouds with GBU-38, I usually get the precise cordinates from the map. At the beginning I try to use the six digit number, but the bomb always missing, and I don't know why. But when I type the whole digit number in the scratchpad, i.e. ten numbers+ two letters before, the bomb hit exactly. I simulated that I had get the numbers of a sattelite recon, Before I get in the mission.