Close-range fights in Call of Duty: Modern Warfare 4 are rarely decided by aim alone. Positioning matters first. The Rezi 12 is at its best when you control the distance, hold a doorway, or catch someone halfway through a turn. Players looking to practise these situations through MW4 Bot Lobbies can focus on movement and timing before stepping into competitive 6v6 matches. The shotgun feels heavy at first, but once its rhythm clicks, a single clean shot can change the whole fight.

Build Around the Fight You Want

The Rezi 12 Enforcer Apex Attachment should be treated as part of a wider setup, not a shortcut to easy eliminations. Reaching the weapon's maximum level takes time, yet the reward is useful in the places where shotguns usually struggle. Tighter pellet spread gives each blast more consistency, while faster sprint-to-fire handling helps when an enemy appears without warning. Pair it with the ISO Nightshade for a sensible two-range loadout. The rifle handles open lanes, and the Rezi 12 takes over when the space gets cramped.

Keep the shotgun ready before entering stairwells, side rooms, and narrow service paths.
Use short slides or a quick mantle to break an opponent's aim as you close in.
Reload behind cover rather than trying to force another fight with an empty chamber.

Make Rooftops Work for You

Rooftops rewards players who keep moving between levels. The snowy walkways give you room to rotate, but the real opportunities sit inside the maintenance areas and stairwells. Do not sprint through every doorway. Pause for a beat, listen for footsteps, then clear the angle with the Rezi 12 already raised. Vertical routes also create surprise attacks. Dropping from an upper platform can put you behind an opponent before they have time to turn, though a careless landing can leave you exposed to the next player.

Use Lithium as a Funnel

Lithium plays differently. Its damaged processing plant is full of machinery, doors, and awkward corners that split teams apart. That clutter can work in your favour. Hold an interior route, close a door after crossing it, and force opponents to enter on your terms. Portable radar can reveal movement near a blind corner, while a stun grenade may buy the half-second needed for a clean shot. Do not chase every contact. The strongest Rezi 12 players wait until the enemy enters the weapon's preferred range.

Movement Wins the Second Shot

Even with the Enforcer attachment, missed shots happen. Good movement gives you another chance. Mix tactical sprinting with brief pauses, slide past cover instead of across open ground, and use mantles to reach unexpected angles. You will soon notice that the best shotgun players are not always the fastest; they are the ones who make opponents fire first and miss. Spend time learning each route, then adjust the setup to your habits. If you want a controlled place to test that routine, buy MW4 Bot Lobbies only after deciding which maps and ranges you need to practise most.