Halo 4 Weekly Challenges: 5.20.13CampaignPrediction: Pain - 2500 XP
Complete any Campaign Mission on Heroic or higher difficulty with the Famine, Luck and Thunderstorm skulls.Infinity and Beyond - 6117 XP
Complete Infinity on Legendary difficulty with the Mythic, Tilt, Tough Luck and Thunderstorm skulls.Spartan OpsI am the 99 Percent - 15000 XP
Kill 100 Elites.Destroyer of Grunts - 12500 XP
Kill 200 Grunts.War GamesSpartan Takedown - 5000 XP
Kill 175 Players.That's Just Perfect - 10000 XP
Complete a War Games match with at least 15 kills without dying.Click here to see a complete list of this week's Weekly Challenges.