The Master of Puppets tone was built around the amplifier. James Hetfield famously ran the preamp of his Mesa into the power section of a Marshall JCM800 to get a blend of Mesa's high-gain saturation and Marshall's punch. Recreating the Preset in Guitar Rig 5
Even with this preset dialed in perfectly, you may find it lacks the "life" of the record. This is often due to the . Guitar Rig 5’s stock cabs are decent, but the secret to the "Master of Puppets Box" sound often lies in third-party IRs. Guitar Rig 5 Metal Preset Metallica Master Of Puppets Box