Schematics - Mantis Scythe

 were the schematics needed to make the weapon "Mantis gauntlet" which were cut from the final version of the game. Picking up this schematic gives you the Fallout 3 Deathclaw Gauntlet schematic that is unusable at the workbench. This could mean that this was supposed to be the new Deathclaw Gauntlet