Graduate

Spartan Graduate is a Halo 3 multiplayer achievement. It was awarded when the player completed the requirements for basic training on Xbox Live and reached the rank of. To reach this rank, players only needed to complete one match in multiplayer. It is represented by a gray plate with two crossed Battle Rifles.

Following the shutdown of Xbox 360 Halo online services on January 13, 2022, this achievement is no longer attainable.

Rewards
Unlocking this achievement rewards the player with the following;
 * ODST multiplayer armor permutation.
 * ODST multiplayer armor permutation.

Additionally, players also lose access to the Basic Training playlist upon unlocking this achievement.