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The XM510 Multishot Grenade Launcher appears to be a semi-automatic grenade launcher used by the UNSC. In Halo Wars, the grenadier upgrade for the Warthog includes a Marine equipped with an XM510 in the passenger seat to improve attack strength of the vehicle.
- The Halo Wars: Official Strategy Guide once mistakenly refers to the "XM511" as the "XM510" in a caption describing the weapon mounted on the Wolverine. However, it's later correctly labeled as the "XM511" on the same page and elsewhere in the guide.
- Halo Wars (First appearance)