A dream I had last night, and the subsequent conversation with a friend, led to popping open the Rites of Battle supplement for Deathwatch, as well as for posting this thread.
Mission: Generate another custom Astartes Chapter.
Premise: Someone somewhere fucked up colossally and now the Chapter consists of precisely two Marines stuck bumfuck nowhere.
How the fuck did that happen? To answer that question, first we need to know why the chapter was founded to begin with. Can I get a d10?