Blue space marines? which ones? Avenging Sons? Dark Hunters? Death Strike? Emperor's Hands? Emperor's Spears? Imperial Paladins? Or wait... you mean the ULTRAMARINES. Not sure if the whole inquisition can take down their huge empire.
The Inquisition leaves no room for doubt or technicalities! NOW ORDER THE EXTERMINATUS OF ULTRAMAR!!!
The Novamarines will be the most difficult, I think. We might even need to call in the Space Furries (Wolves) for this one.
It's better to be sure, believe me. One time I was at Lelith's house, and we accidentally mixed up the stool softener with the Combat Drugs. It wasn't pretty, and half of the people there were thrown to a Haemonculi coven.
*holds Zotucus and Balthazar up in the air and shakes them around as if they weigh nothing* ANSWER ME!