X01 does not feel like a normal DMZ location. The rooms are tight, the routes fold back on themselves, and a squad can lose its bearings after one rushed turn. Before launch day on November 6, spend a little time sorting out roles and checking your kit. Players who practise with CoD MW4 Bot Lobbies may arrive with sharper movement habits, but that will not replace a proper tunnel plan. X01 rewards patience more than speed. Pick one player to lead, one to watch the rear, and one to carry mission items and tactical equipment. Keep those jobs clear from the start. When everyone drifts into the same doorway, the next squad through the corridor gets an easy angle. Voice calls matter too. Give important junctions simple names, then use those names every time. "Left side" becomes confusing after two turns; "Red Valve" stays useful.

Build a route before the pressure starts

Do a quiet run first, even if it feels slow. Fifteen minutes spent learning door chains can save an entire match later. Look for rooms that connect back to the main passage, stairwells that change your height, and corners where a downed teammate may be hard to reach. Choose two rally points inside the facility. If someone goes down, the squad should know where to regroup instead of chasing a marker through several levels. Keep the leader moving at a steady pace. Rushing the first few rooms usually creates noise, missed doors, and poor spacing. The rear player has a less exciting job, but it may be the most important one. Check every foldback after the group passes. Outside teams often wait for a squad to focus on the objective before pushing from behind.

Prepare for a changing extraction

X01 extraction points can become unsafe as the facility state shifts, so never enter with only one way out. Set a main extraction and a backup location before the deepest part of the run. Everyone should know the backup by name and direction. If the main point closes, there should be no debate in the hallway. Call the change, turn the group, and move. Check plates, Self Revives, masks, and tactical equipment before crossing into the tunnels. A weak plate count becomes a serious problem when a revive happens in a dead end. Gas timing matters more than one extra room of loot. If the timer says move, take the mission item and leave. A squad that survives with the objective is in a much better position than one that stays for a few loose containers and loses the route.

Choose equipment for corridors

Build the insured loadout around the space, not the open ground outside. A reliable mid-range rifle works well through longer passages, while a close-range weapon covers stairwells and cramped rooms. Carry specialised keys and check the access slots before deployment. Missing one key after entering X01 can waste the whole attempt. Smoke and stun equipment should have a minimum reserve. Using everything in the first fight leaves the next hallway to luck. Open-sky streaks lose value underground, so choose tools that help with room control instead. Keep the bag organised. Mission items, keys, plates, and masks should be easy to reach without stopping in a doorway. After the objective is secured, leave through the planned route. Searching every side room gives nearby squads time to follow the sound and cut off the exit.

Turn each run into a squad routine

After a successful clear, write down the door order, the safest rally points, and the route to both extraction choices. It does not need to be a long document. A few notes on a phone or pad are enough. Warm up at ordinary DMZ locations before the first serious X01 attempt, especially if your aim feels cold. Review objectives, spending, and secured items when the session ends, then write the next task down instead of wandering through menus. Keep the same role order for the next run, but change it occasionally so every player understands the route. With practice, the tunnel stops feeling like a maze and starts feeling like a timed drill. Keep useful supplies ready through cheap Modern Warfare 4 DMZ Items, then focus on clean movement, quiet calls, and reaching extraction before the facility closes around you.