Campaign Complete: Normal (Halo 3: ODST achievement)
From Halopedia, the Halo wiki
Normal is an Achievement in Halo 3: ODST. It is awarded for completing the game on Normal difficulty. It is worth 100 Gamerpoints.[1]
Sources
From Halopedia, the Halo wiki
Normal is an Achievement in Halo 3: ODST. It is awarded for completing the game on Normal difficulty. It is worth 100 Gamerpoints.[1]