Wraith Hunter
From Halopedia, the Halo wiki
Wraith Hunter
Birth of a Spartan is an achievement in Halo: Combat Evolved Anniversary. It is awarded for destroying 4 T-26 AGC "Wraiths" on the campaign level Assault on the Control Room. It is worth 10 Gamerpoints.[1]
It is represented by a side view of a T-26 AGC and a number "4" inside a octagonal scope.
Trivia
In both name and requirement, this achievement is similar to the achievement "Wraith Killer" in Halo 3: ODST.
Sources