Because It Wasn't Hard Enough

Because It Wasn't Hard Enough is an achievement in Halo: The Master Chief Collection. It is awarded by completing a campaign mission in Halo: Reach with three or more skulls enabled.

The achievement could only be unlocked by activating any skulls other than the Cowbell, the Grunt Birthday Party, and the IWHBYD skulls. The player would not unlock the achievement if any of the three aforementioned skulls are activated.