Since noone noticed it in Rules Development (original thread here)...
The 40k Objective-based Scenario Generator (warning, pdf file!)
And here is version 1.1!
It has been designed to take care of all your 40k scenario needs and replace all the standard missions in the book. It has been inspired by a similar generator published in WD a few months before the release of 4th ed. I have taken the ide a to a new level and if the generator functions as it should, it will emulate the original generator and all the standard BGB missions and provide some all-new situations to boot.
Anyway, take a look and tell me what you think.