www.bungie.net | halo.bungie.net | bungiestore.com
any body Knows some easy custom Challenges that will give you a lot of credits?
Best score ever!7777Rumble pit exp!Check out my archive of game play by me. Follow me on Twitter! @Mythicalwolf77
Yes.
Challenges based on killing grunts offer five times the regular multiplier this week. For example, killing 100 grunt heroes will net you 10K credits.