This is Not the Greatest Lab in the World…

This is Not the Greatest Lab in the World... is an achievement in Halo: The Master Chief Collection. It is awarded for entering Catherine Halsey's lab during The Package via the Tribute Room easter egg.

Trivia

 * The achievement name references a line in the Tenacious D song "Tribute".
 * The achievement icon is the Splatter/Carnage icon, likely suggesting one of the popular methods of killing the Elite Generals spawned during the easter egg.