From Halopedia, the Halo wiki
The Hoplite variant has implemented targeting and datalink advancements that increase the accuracy and lethality of its Spartan users when they operate long-range heavy munitions such as the M41 rocket launcher.
Halo 2: Anniversary
A hoplite was a citizen-soldier of the Ancient Greek city-states who was armed primarily with a spear and a shield. Hoplites represent the archetypal image of Ancient Greek warriors, including the forces of Sparta.
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