BFBS Forces has put together its best estimation of how the big bombs were deployed based on historic and current satellite imagery. It paints a picture of amazing military precision by a handful of young aviators.
Best Of The Web: Where The Bunker Busters Landed
Five bombs went down a single hole to reach underground facility.

I am in awe… this is simply amazing!
I’ll stand a bit straighter this Friday and salute the men and women who serve and have served our country so honorably!
Repeating down hole to go deeper is the plan, plus a timed trigger if stopped.
A confusing aspect of photos is three holes close to each other - I read that each of two ventilation shaft systems had three top entrances.
Seven B-2s carried 14 bombs total.
(One spare but all seven were able to reach the targets.)
(USN ships/submarines also launched cruise missiles from ocean to the south.)
I predict the US will be developing a 30 ton bomb, as a B-2 can carry that weight (carried two of 15 ton bombs).