Halo: The Master Chief Collection

On this map, you'll notice bright red/orange devices hanging from the ceiling of each base. When you destroy it, you activate a waterfall that blocks the view from the main entrance to the base. This effect lasts no more than 30 seconds before returning to its original state.
It can be obtained simply in a Custom Game with another player. When the match starts, you need to destroy the device at the enemy base and take the flag before the waterfall disappears. The achievement will unlock as soon as you leave the enemy base with their flag.