I was wondering if when you make custom challenges on Reach, do they increase your rank or does it only increase your credits that you’re given? I’m new to Reach since I only got it 3 days ago for X-mas. I thought that if I did them, I could increase my rank a little quicker. Is this just a think that Bungie and 343I put in the game solely to keep you on Reach or does it actually increase your rank/credits?