I am new to developing a DIY Chapter and writing its IA. I have found this guide to be quite interesting and informative. That being said I have a few questions. What is the best way to decide what it is your Chapter originally set out to do? I kind of agree with them not being created to whack the mole as someone put it, but I also agree that a founding is a big deal and they don't just create a Space Marine Chapter and then say "Ok guys go kill something somewhere." To me it seems like there has to be some reason for the Chapter's creation but it shouldn't be too specific or too vague. Is it ok to send them to a particular region because of a severe lack of Imperial presence? Then maybe they can find their homeworld while on a patrol arc through said region? A couple of run ins with the bad guys and their I have it? That was an idea I was toying with but wasn't sure if it would work well or not.