From Halopedia, the Halo wiki
The Corpsemaker is a named variant of the T-2 EW/H, upgraded with increased lunge range and faster swinging rate. It uses the T-2 EW/H's model albeit with a change to the hammer's head to decorate it in a red color scheme broken up by yellow and white stripes. The weapon is made of the finest materials that were stolen from raider lairs on Warial and Teash.
Halo 5: Guardians
The Corpsemaker is a Level 4 Rare Power Weapon REQ variant of the Gravity Hammer that grants 100 REQ Points when sold. It operates identically to a normal Gravity Hammer except that it has a faster swinging speed and a longer lunge range. These improvements make the Corpsemaker more powerful when dealing with multiple enemies in close range and can further boost its utility as a weapon for trick jumps, which are done with the player looking down at the ground, jumping, activating Smart-Link to stabilize themselves in the air, and then swinging with the Corpsemaker repeatedly.
Changes from the Type-2 Energy Weapon/Hammer
Halo 5: Guardians REQ cards
List of appearances