This is my Rifle, this is my Gun is an achievement in Halo 4 and Halo: The Master Chief Collection. It is obtained by carrying a UNSC weapon all the way through the campaign mission Forerunner on Heroic or harder.
- The title of this achievement is a direct quote from the movie Full Metal Jacket.
- This is a song for cadence that goes "This is my rifle, this is my Gun. This is for fighting, this is for fun."
- The easiest way to get this achievement is to carry the assault rifle, with or without ammo, throughout the whole mission.