Snoop Troop
From Halopedia, the Halo wiki
Snoop Troop
Snoop Troop is an achievement in Halo: The Master Chief Collection. It is awarded for activating the fourteenth Halo 3: ODST Audio log on Mombasa Streets. The achievement is worth 5 gamerpoints and can be unlocked on any difficulty.
Location
The achievement is awarded when the player unlocks their fourteenth terminal, regardless of which terminal in the hub that is. For terminal locations, see here.