Hey I don't typically play, I mostly collect and paint models but I'm thinking of starting to actually play some games. I got a mix of space marines, sisters, and imperial guard. I want to paint and convert a playable force.

I've got abit of Infantry and I'm getting a dreadnought. But that's all I've got so far. I need help building a list as I have no idea how to play or what to get. (I'm not looking for the best meta army just something thats fun to play and thematically aligned to my lore.)

I have a custome faction idea for most armies but I have the most for my space marines.

the main list of the chapter is that they are a successor chapter of both the imperial fist and ultramarines (giving them a similar vibe to the raptors). however they have a stronger connection with the salamanders due to the fact that they work well together in battle and prioritize helping civilians and guardsmen over costly victories. They typically deploy as small tactical groups (typically with a team of guardsmen assigned to each marine). They would mostly act as military tacticians and guides to help Planetary defence forces. They are mostly a fleet based chapter that patrols a small sector often returning to a "home system".

The chapter draws their forces from a medical research and production system, chosing from not only the best soldiers but also the smartest or wisest. They help train the guardsmen from the planet's they call home and often run drills alongside them to better their cohesion in battle. Each marine must alsohave a field of study or research.

the chapter is often seen to be a little heretical in some of their practices ofter showing up to battles with strange integrated xenos technology or alongside votan vessels. (Think Rouge trader). They often times respond to Distress signals from xenos or votan sources often trading assistance for info or technology.