Back when the first Vigilus book came out, I grabbed a copy and voraciously read through it. For a campaign book I just fell in love with the whole story. I felt like an absolutely perfect example of a 40K campaign. Only thing missing was a means to include Tau, Necrons and Tyranids but I get why they were not included. It would be just busy for lack of better words.
One aspect of the book that I loved was the campaign system. Each stage of the war came with a couple specific blanket rules that allowed the campaign to be played nice and thematic. Nothing game breaking but cool all the same. I even started up a league, for lack of a better word, for the local club. The idea was to be play out the whole story over a couple years. To start with it the campaign seemed popular enough but after a couple months things turned a bit sour. The more competitive players at the club decided that narrative missions and the specific round rules did not suit them. Even though I had said that they could play any mission they wanted, they pulled out of the league and soon enough the whole thing had fallen apart much to be disappointment.
To say I was annoyed would be an understatement. But fair play. Can't please everyone all the time.
Recently I have finally got my hands on a copy of the second book in the series and as 9th edition has a few players from the club interested in the Crusade system I am hoping that I can restart the Vigilus campaign with them utilising the new rules once we get out of the pandemic and lockdown. Maybe with fewer players and with those more interested in a narrative play the idea might get somewhere.