Red vs. Blue (achievement)
From Halopedia, the Halo wiki
Red vs. Blue
Red vs. Blue is an achievement in Halo: The Master Chief Collection. This achievement is obtained by winning 10 matches on Bloodline on Halo 2: Anniversary multiplayer. The achievement is worth 10 gamerpoints and can be unlocked with both matchmaking and custom games.
Trivia
The achievement is, naturally, named for the Red vs. Blue webseries; the majority of the first five seasons, known as "The Blood Gulch Chronicles", take place in the classic box canyon.
