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. Both are probably very different in size and use.
- The XM510 highly resembles the M32 Grenade launcher, and may be inspired from it.
- Halo Wars (First appearance)