Best REZI-12 Loadout in Modern Warfare 4 Season 1

The REZI-12 is a devastating close-range shotgun in Modern Warfare 4, particularly when fights happen within just a few metres. This Season 1 loadout is built around that strength, making it an interesting option for players who favour aggressive pushes, cramped interiors, and fast-paced combat on smaller multiplayer maps.

The configuration featured in the original REZI-12 loadout video combines five attachments, including the ZLR Competition-B6 bolt and a No Stock setup. Rather than trying to turn the shotgun into an all-purpose weapon, the build is intended to make the most of encounters where distance is already working in your favour.

Best REZI-12 Attachments in MW4 Season 1

This five-attachment configuration is designed for extremely close-range engagements, with an emphasis on fighting inside approximately five metres.

A Shotgun Built for Point-Blank Engagements

The defining characteristic of this REZI-12 loadout is its narrow engagement window. At point-blank range, shotguns can punish opponents who have little time or space to react, particularly around doorways, corners, and confined objectives.

The No Stock configuration is consistent with an aggressive, mobility-oriented approach, while the ZLR Competition-B6 bolt, ZLR Rogue 90 25" barrel, QFL-S4.5 laser, and EXP Firelite 12 muzzle complete the weapon's five available attachment choices.

The longer barrel is an interesting inclusion, but it should not be mistaken for an invitation to challenge assault rifles across open sightlines. Even with this attachment, the intended role remains firmly focused on extremely short distances.

The most important consideration is positioning. A REZI-12 player benefits from controlling where engagements happen rather than accepting every gunfight the map presents.

Where This REZI-12 Loadout Makes Sense

Small multiplayer maps offer the most natural environment for this configuration. Tight corridors, compact buildings, and objectives surrounded by cover create opportunities to approach enemies without crossing large exposed areas.

For aggressive players, the practical approach is to use short flanking routes and environmental cover to close the distance before committing to a fight. Holding a narrow entrance can also be effective, especially when opponents have limited room to create separation.

However, that aggression needs to be selective.

The ideal engagement distance is within five metres. Once enemies move beyond that range, the REZI-12 becomes a less attractive choice compared with weapons designed for more flexible engagements.

Trying to force shotgun fights across courtyards, longer corridors, or open lanes works against the fundamental purpose of this configuration.

Pair the REZI-12 With an Assault Rifle or SMG

The biggest limitation of this setup is its lack of versatility outside point-blank combat.

An assault rifle is the more practical complementary weapon when the map frequently forces medium-range engagements. It gives players an option for challenging enemies across lanes or defending positions that cannot be approached safely with a shotgun.

An SMG is another possibility, particularly for those who want to maintain an aggressive playstyle while extending their effective engagement distance beyond the REZI-12's preferred range.

The important distinction is that the REZI-12 should be a specialist weapon, not the answer to every encounter.

Players who consistently fight around tight objectives and enclosed spaces are the ones most likely to benefit from this configuration. On larger, more open maps, its usefulness depends heavily on finding routes that allow safe approaches.

For the complete attachment setup, watch the original REZI-12 loadout video on YouTube.

The central lesson is straightforward: use the REZI-12 to control extremely close-range fights, but recognise when distance makes switching weapons the smarter decision.