Assuming ideas can still be thrown around;
The Inquisition’s Fleet floated in the artificial port of a massive, space station above Ojom, each member of the fleets crew occupied with various tasks around the various ships first tour through Sith controlled space. Although they had set up already, this would be the first time the fleet would see real service, visiting a pre-planned path through the stars for Acolytes and Inquisitors alike to spread the message they carried, a message of truth and purification amongst their great empires ranks.
Aboard the flagship sat the operating communications crew of the numerous vessels, each one occupied with various pings, returns, and sent messages amongst the fleet. As various small dings signaled, one consoles lights began to flash in a sporadic and off scenely manner, it’s operator quickly standing to his feet with a horrified expression on it’s face.
“Sir!”, he called the comm’s officer in charge of this shift, “30 unidentified ships just exited hyperspace to our port side! All hails have been met with radio silence!”
The comm’s officer had little time to react, almost instantly sending out a return message to all ships in the fleet to prepare for combat as the mystery ships opened fire. What was the calm space morning of a fleet getting ready for her crowning voyage, turned sour as the debadged suprise attack quickly fell upon them, each member of the fleet forced into various combat positions.
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Understandably, a very rough draft, but what of an idea like this? A thread introducing the Inquisition by a surprise attack from unknown forces leading to a small campaign to find the traitors involved?