Didn't See It Comin'

From Halopedia, the Halo wiki

Didn't See It Comin'
Didn't See It Comin'.png
10 Gamerscore icon taken from Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.

Didn't See It Comin' is a Halo 4 achievement added with the Majestic Map Pack. It was unlocked when a player, in Majestic DLC matchmaking, assassinated an enemy who was zoomed in while using a scoped weapon or the HUD's built-in zoom function.[1]

Following the shutdown of Xbox 360 Halo online services on January 13, 2022, this achievement is no longer attainable.[2][3]