You could load it with bombs, then have bunch of other P38's loaded up also and as this "droop snoot" drops bombs, others drops also.
Thats not saying much though. We don't have large enough targets for saturation bombing. Hell, the B-17s and such have to aim down to the foot to hit things in this game.
What you just described can already be done in AH, but nobody will do it. All you have to do is fly a heavy fighter beside ANY plane that has a bombsight and drop when he does. Like I said though, I doubt it will actually work.
BTW, that is also how BOMBER formations do it. Only the lead bomber of a squadron is looking down at the target, the rest are just flying formation and drop when he does.