Okay, the group is under Ordo Hereticus sector of the inquisition which has taken them several different places. They are in a variety of ranks between three and five on their respecive class charts pending character and experience level with the average being four. This has garniered them a bit more room to manuver and they have gone on more pressing missions which have taken them, as heresy and taint knows no bounds, to various places and they have met on a few occasions, Space Marines of various chapters: Ultramarines, Dark Angels, and Grey knights.
I want them to run into the grey knights again however I have a question about it. I want to bring up the Grand Master of the space marines but that person is Kaldor Drago who is currently wandering around the warp, for those who know the Grey knights well enough is there anyone in the area of "acting grand master?" In dragos absence?