Roses vs Violets

Roses vs Violets is an achievement in Halo 4. It is awarded when a player, in Spartan Ops, finds one of the Red vs. Blue easter eggs. The achievement is worth 20 Gamerpoints. It is represented by a star inside an oval with one half of color blue and the other red.

Trivia
The achievement's name is most likely a reference to the Red vs. Blue theme song, Blood Gulch Blues by Trocadero; specifically derived from the lyric "Roses are Red, Violets are Blue", which it self is a reference to the poem "Roses are red".