The RAPP H is a LMG available in Call of Duty: Modern Warfare 3 (2023).
Thanks to the gunsmith, there are several ways to prepare the RAPP H for battle but after some extensive testing in the gunsmith, we've found a set of five guaranteed to make an impact:
LMGs excel in mid-range and long-distance and to minimise any damage drop-off, the Romeo FT 16" Barrel extends bullet velocity and damage range enough so the RAPP H can make an impact in most scenarios.
The recoil of the RAPP H is hugely problematic which is why the trio of Meer Recoil-56 Factory Stock, XTEN Nexus Grip, and Lachmann TCG-10 come into play. These three manage to bring recoil to more controllable levels.