Warning: this is going to be a long post.
The group consisted of a Ventrue, a Minister, a Gangrel, a Hecata, and a Banu.
The Ventrue was the night time nurse manager at a local hospital, gaining favors from all the kindred community, as well as gaining power in the community.
While at work one night, the Ventrue was visited by the current “Baron” of the area. Keep in mind that this is an Autarkis area, with no solid power structure. Turns out the local Baron is also a Ventrue, and looking to help the player grow his own influence, while gaining another loyal supporter at the same time. The Baron asks the player to arrange a “Gala” event to welcome a respected member of the kindred community to the area. The kindred in question is a respected plastic surgeon, as you can never have too many doctors in an area.
The Gala kind of ended up being like the red wedding in the Game of Thrones books, but allowed all of the players to socialize and gain contacts. A big production was made to assure that the Ventrue player was recognized for all of his hard work, even as the guest of honor was making his speech.
The ministry character was asked to bring party favors to the Gala. So he brought with him a troop of vessels full of an assortment of intoxicants for the kindred to sample/enjoy.
The other players were not given particular roles in the event, instead were there for interaction with all of the SPCs and see what information and contacts could be made. This ended up being a large information dump for all of the characters, as they could not run out of new and interesting kindred to talk to.
After surviving the “Gala”, and cleaning up the mess afterwards, the good doctor came for a visit to the newly introduced Ventrue character. The Gala was a night to be remembered by all that attended. Having just come to the area, the Dr feels like this Ventrue character has just enough influence to accomplish his task, yet not be threat either. It turns out that amongst his many possessions being brought to the area, was a unique collection of historical artifacts, intended to be put on show at the local museum. Through oversite or neglegance, part of his collection never made it on display at the museum. In return, for the promise of increased power and a boon from a powerful kindred, the Ventrue is asked to find these missing artifacts…
The museum allows great leeway in giving as much or as little information as you want on the history of Mithras: The wars he fought in, the lands he controlled, the rise and fall of Carthage, anything you need. Plus it was fun running the museum as a heist scenario for players to test out some of their abilities.
Don’t forget that Ventrue elders would love to tell your players all about Mithras as well. I mean you can’t be a Ventrue and not know who Mithras is. The fact that Mithras should be in Britain helps to keep players in the dark about what is truely going on.
The elder Nosferatu characters in your campaign can also be used to fill in any gaps or expand any topics you need. The information brokers have a value beyond compare.
Ministry characters may or not be affiliated with the church of set in V5. If they are, then the church will tell them all about the false God Mithras and his followers. They may even encourage players to find missing items, just to destroy these false relics. If they are not, then you can ignore the conflict between the two churches.
Banu characters may be of any faith in this edition. My player ended up following the Catholic faith, which has many tie-ins to the history of Mithras as well.
I hope this helps, and good luck.