User blog comment:Bakonznator/need help on creating space marine chapter/@comment-2253300-20140822084045

1. Go to 40k Fanon Wiki. That's where you should be posting you fan writing. 2. Figure out the disposition of your Chapter. Most importantly 3. Give them a notable conflict or event to take part in. People often come up with interesting premises for Chapters only to have them fizzle out because they have no idea what to do with them. Coming up with scenarios to take part in is amongst the most important parts of making a good Chapter.

If you are asking for advice on Tabletop I can't help you.