For those who know a bit about scripting, here's a problem for you. My test mission uses two scripts: one for detecting the laser, one for dropping the bombs. It works, though it needs modifications:
1. Make it so you can't drop more than one bomb at once (by disableing the radio) untill the "Bomber Pilot" says he's ready.
2. If possible (and easy), to make it so if you radio for the bomb but then turn off the Laser Designator, the error message will not appear. This is less important.
Anyway, take a look at the mission and let me know what you think.