Complete Highway on 4-player Legendary LIVE co-op, with Iron, and no 'Hog or Scorpion. - Halo 3: ODST
Score over 200,000 points in Firefight on Lost Platoon. - Halo 3: ODST
In Firefight, finish a full round without killing a single enemy. - Halo 3: ODST
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1,171/1,583825/1,00037/47