GOOOAAAAALLLL!

GOOOAAAAALLLL! is an achievement in Halo: The Master Chief Collection. It is unlocked by shooting the Soccer Ball located on the level Metropolis. The achievement is worth 10 Gamerscore and can be unlocked on any difficulty.

Strategy
The easiest way to access the soccer ball is to fly to it using a Banshee. As such, players should plan to unlock this achievement immediately after finding the Scarab Gun and unlocking the Scarab Lord achievement, utilizing the Banshee acquired for the latter achievement to unlock the former.

Hijack a nearby Wraith (on easy difficulty, it'll just need a single hit to kill the driver) and drive to the building where the soccer ball is. Fire the wraith's gun in the general direction of the ball and it should eventually hit it and unlock the achievement.