Challenges are daily objectives for Halo: Reach posted on Bungie.net. All challenges are reset at 11am GMT (3am PDT) with Daily Challenges resetting each day and Weekly Challenges resetting each Monday. A player is awarded a certain number of Credits[1] after completing an objective.

Players who complete a Weekly challenge are awarded the achievement One Down, 51 to Go. Players who complete all of the Daily Challenges on a single day are awarded the achievement A New Challenger.

Challenges

Icon Name Requirement Credit Reward Date
Weekly Challenges
  Multiplicative Earn 45 Multikills in multiplayer Matchmaking this week. 2000 cR November 1-7, 2010
Daily Challenges
  Gunslinger Kill 40 enemies in multiplayer Matchmaking. 400 cR November 1, 2010
  One Spartan Army Kill 150 enemies in Firefight Matchmaking. 1500 cR November 1, 2010
  House of Pain Complete a Campaign mission on Heroic with Mythic, Tilt, and Thunderstorm on. 1000 cR November 1, 2010
  Linked Up with Bungie.net Link your gamertag with Bungie.net and play a game in Halo: Reach Matchmaking. 3000 cR November 1, 2010

Sources