To get this Achievement you watch any video clip in Theater.
The Theater found in the Community Section at the main menu.
Use the 1st Method if you already have played a game of multiplayer.
Use the 2nd Method if you don’t have any clips & to learn how to make a fast one in Custom Game.
⬇️ Timestamps ⬇️
0:00 1st Method
0:48 2nd Method