• 17,619,533 Achievements Earned
  • 216,026 Players Tracked
  • 700 Total Achievements
  • 30,591 Obtainable EXP
  • 7,000 Gamerscore
  • 809 100% Club

Halo 3: Find and claim the Grunt Birthday Party Skull on Normal or harder.

5
11.74% Very Rare - 18.53 EXP

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