When I saw the announcement for the RT adventure contest I had an idea that I wanted to submit but time is short due to being on a deployment to Afghanistan. So I submit my general idea to you for your use. I will probably write it up when I have more time.
Per Adventure: The characters are approached by an apparently rich but pious person who request that your crew move a small amount of cargo to resupply one of his vessels in the Kronus expanse. The payment for the characters would be the complete rights to an previously unknown hi-tech Pre-Imperial star System. However there is no actual Profit just the chance to make an obscene profit at a later date. In fact Mr. Johnson will probably recommend the Players being a sizable number of imperial missionaries to convert the system.
Once the character navigate their way to the coordinates they find that they are deep space very close to small Warp Storm. When they arrive at the coordinates, they are hailed by a Dark Angel Frigate, and then sortly 'greeted' by a squad of space marines teleporting over to their ship. The leader of the group (and acting ship captain) is an Interrogator Chapel, and all of the members are clad in solid black armor with white robes. They then unlock the cargo containers and they are introduced to a squad of marines clad in all white armor. The group is informed that the Dark Angels are in need of their assistance. They have been investigating rumors of a group of 'super human' space pirates raiding ships in this region. In their search they discovered a small localized warp storm that appear solid except for a very small stable warp route. The Dark Angels are offering the characters the knowledge of this warp route and sole access to exploitation of this system for their assistance in finding this group of 'super human' pirates.
The Dark Angels are of course a squad of Raven's Guard who have been hunting down rumors of a group of fallen. Their quest has taken them to this system. The system beyond the warp storm is actually a multi-star system with hundreds of moons an planetoid (think serenity). This system was settled by an errant sleeper colony ship from before the dark age of technology and it has access to much advanced technology. However it does not have access to warp drives. It could be considered a cross roads because their are a number of different alien races all co-existing, however none have been able to leave due to the erratic nature of the warp in the region. There is a group of renegade space marines operating from this system who have knowledge of the stable warp route through the storm. They are from a chapter that rebelled against the Imperium and was destroyed. The Dark Angels will gladly destroy these rebels with the characters assistance.
However, within this system they does exist on of the fallen. He is one of the original space marines from terra, ancient beyond measure. He sites at the head of a massive criminal network that provides knowledge to anyone at a price. He could be the key to great rewards to the players, but do they double cross the Dark Angels. And are they able to accomplish this endevour without learning the secrets of the Dark Angels that could cost them their lives.
Hope you enjoy.
Salcor