Gameplay

Thermopylae

From Halopedia, the Halo wiki

Thermopylae is an achievement in Halo: The Master Chief Collection. It is awarded for winning 300 multiplayer games. The achievement is worth 10 gamerscore. It also unlocks the Silver Slayer Nameplate.

Trivia[edit]

The name of the achievement is a reference to the Battle of Thermopylae; the 300 wins is a reference to the 300 Spartans who fought in the battle.