Tianlun Zhang
Founder & Editor · Call of Duty DMZ Wiki
Tianlun Zhang is the founder and editor of Call of Duty DMZ Wiki. He has covered the DMZ mode since the Modern Warfare II era and now maintains the wiki's map, mission, and progression guides.
Articles by Tianlun Zhang
Hajin Map Guide: Every Major POI, Threat Level & Loot Spot
Full Hajin map walkthrough for Call of Duty DMZ: all 13 major POIs with threat levels, 60+ minor locations, and loot spots worth the detour.
DMZ Story Missions: Walkthroughs for All 6 Operations
Every Call of Duty DMZ story mission explained: objectives, exfil requirements, and rewards for all 6 operations, plus squad strategy tips.
DMZ Key Locations: Every Serpent Island Key Card Room
All 10 Call of Duty DMZ key card rooms on Serpent Island: where each card spawns, what loot's inside, and how to chain rooms in one deployment.
Call of Duty DMZ Beginner Guide: Everything to Know Before Your First Deployment
This Call of Duty DMZ beginner guide covers the FOB, looting, health mechanics, exfil strategy, and survival tips every new operator needs.
Call of Duty DMZ Early Access Guide: Start Date, How to Get In, and Hajin Tips
Call of Duty DMZ early access is live in Modern Warfare 4. Here's the start date, how to get in, what's new in Hajin, and tips to extract with your loot.
Call of Duty DMZ Extraction Shooter Guide: Raid Tips, Loot Tiers, and Boss Hunts Explained
Beginner guide to the Call of Duty DMZ extraction shooter: raid tips, loot tiers, hideout progression, boss hunts, and extraction advice for new operators.
Call of Duty DMZ How to Play: Complete Beginner's Guide to Modern Warfare 4's Extraction Shooter
Learn Call of Duty DMZ how to play: FOB stations, looting routes, crafting, exfil strategy, boss hunts, and progression tips for new operators in MW4.
Call of Duty DMZ Release Date: Early Access, Launch Schedule & Day-One Guide
The Call of Duty DMZ release date is October 23, with early access live since October 20. Full schedule, Hajin map intel, and day-one tips inside.
Call of Duty DMZ Release Time: Early Access & Full Launch Times for MW4
The Call of Duty DMZ release time is 10 AM PT on Oct 20 for Early Access and midnight local on Oct 23 for full launch. Every time zone, explained.
Call of Duty DMZ Solo Guide: Tips, Loadouts, and Mission Strategy for Lone Operators
Learn how to survive Call of Duty DMZ solo with loadout tips, mission strategy, insured weapon cooldown tricks, and safe extraction tactics.
Is Call of Duty DMZ Free to Play? MW4 Access, Cost & Beginner Guide
Is Call of Duty DMZ free to play? We break down MW4's pricing, how to access the extraction mode, and everything beginners need to survive Hajin.
Call of Duty DMZ Al Mazrah Map: POIs, Barter Recipes, Keys & Best Routes
Master the Call of Duty DMZ Al Mazrah map with POI breakdowns, barter recipes, key locations, exfil routes, and survival tips for every deployment.
Call of Duty DMZ Ashika Island Map Guide: POIs, Barter Recipes & Solo Tactics
Master the Call of Duty DMZ Ashika Island map with POI breakdowns, barter recipes, key locations, and solo strategies to exfil with the Bombmaker's loot.
Call of Duty DMZ Building 21 Map Guide: Floors, Safes, Loadouts & Extraction
Complete Call of Duty DMZ Building 21 map guide: three-floor layout, safe locations, best loadouts, barter recipes, and every extraction route.
Call of Duty DMZ Map Guide: Every POI, Threat Level, and Extraction Tip for MW4's Hajin
Full guide to the Call of Duty DMZ map in Modern Warfare 4: Hajin POIs, threat levels, missions, vehicles, and extraction tips for new Operators.
Call of Duty DMZ Dynamic Ops Guide: Lieutenant Hunts, Intel, and Extraction Tactics for MW4
Learn how Call of Duty DMZ Dynamic Ops work in Modern Warfare 4: contract types, lieutenant assassinations, dog tag extractions, and reward strategy.
Call of Duty DMZ Gauntlet Mission Guide: Every Objective, Route, and Tip
Call of Duty DMZ Gauntlet mission guide: step-by-step objectives, elite hostile routes, keycard rooms, and loadout prep for all six challenges.
Call of Duty DMZ Story Missions: Complete MW4 Guide, Rewards & Walkthrough
Every Call of Duty DMZ story mission in MW4 explained — objectives, hospital HVT extraction walkthrough, rewards, and weekly completion bonuses.
Call Of Duty DMZ Best Loadout Guide: Weapons, Attachments & Gear for MW4
Build the Call of Duty DMZ best loadout in MW4: gunsmith unlocks, AR and SMG pairings, key attachments, crafting priorities, and exfil-ready gear.
Call of Duty DMZ Best Weapons: Top Guns, Attachments & Loadout Tips for Every Raid
Our guide to the Call of Duty DMZ best weapons covers top AR, SMG, and sniper builds, plus the new weapon manual system that changes how you unlock guns.
Call of Duty DMZ Meta Weapons: Best Day-One Loadouts for Modern Warfare 4
Our Call of Duty DMZ meta weapons guide covers the best early AR and SMG loadouts, weapon manual unlocks, and gunsmith tips for Modern Warfare 4's launch.
Call of Duty DMZ One Shot Shotgun Build: Best Bryson 800 Loadout & Tuning
Full attachments, tuning values, ammo picks, and map tips for the Bryson 800 — the community's go-to Call of Duty DMZ one shot shotgun build.
Call Of Duty DMZ Weapon Tier List (2026): Best Guns & Meta Builds
Our 2026 Call of Duty DMZ weapon tier list ranks the best guns by class with proven loadouts, tuning tricks, and sleeper picks from top DMZ players.
Call of Duty DMZ Access Card Locations: Every Keycard Room & How to Unlock It
Full Call of Duty DMZ access card locations guide: every keycard room, all seven Building 21 cards, rank-locked NFC cards, and secret loot tips.
Call of Duty DMZ Dead Drop Locations: Every Active White Dumpster (Al Mazrah, Ashika, Vondel)
Find all 21 active Call of Duty DMZ dead drop locations across Al Mazrah, Ashika Island, Vondel, Koschei Complex, and Building 21, with grid coords.
Call of Duty DMZ Loot Locations: Best Spots to Farm High-Value Loot in MW4's Hajin and Serpent Island
Find the best Call of Duty DMZ loot locations on Hajin and Serpent Island: low-threat starts, Safe Boxes, boss drops, and high-value farming routes.
Call of Duty DMZ Weapon Case Guide: Spawn Locations, Solo Strategies, and All Rewards
Learn how to secure the Call of Duty DMZ weapon case on every map, survive solo exfils, and unlock every blueprint and cosmetic reward along the way.
Call of Duty DMZ Best Traits: Warfighter, Scout & Survivalist Build Guide
Ranking the best traits in Call of Duty DMZ. Compare the Warfighter, Scout, and Survivalist trees and learn how to spend all 18 trait points wisely.
Call of Duty DMZ Insured Slot Guide: Unlock Every Slot and Cut Cooldowns
Learn how every Call of Duty DMZ insured slot works, how to unlock slots two and three, and how to slash cooldown penalties with faction rep.
Call of Duty DMZ Operator Skins: Complete Unlock Guide, Rarity Tiers & Best Picks
How to unlock Call of Duty DMZ operator skins through missions, battle passes, and bundles—plus rarity tiers, crossover rarities, and visibility tips.
Call of Duty DMZ Progression Guide: FOB Unlocks, Mastery Camos, and Prestige Tips for Modern Warfare 4
Master Call of Duty DMZ progression in Modern Warfare 4: FOB station unlocks, DMZ mastery camos, weapon prestige, and fast-leveling tips.
Call of Duty DMZ Coming Back: Modern Warfare 4 Launch Date, New Hajin Map, and Every Major Change
Call of Duty DMZ is coming back in Modern Warfare 4. Get the launch date, early access info, Hajin map breakdown, FOB unlocks, and day-one tips.
Call of Duty DMZ News: Modern Warfare 4 Reveals Hajin Map, FOB, Bosses, and Vehicles
Latest Call of Duty DMZ news: MW4's Hajin Exclusion Zone, FOB stations, Lieutenants, Commanders, vehicles, and the full level 70 progression path.
Call of Duty DMZ Patch Notes: New DMZ Orders, Dynamic Ops, and Operator Rescue Changes Explained
The latest Call of Duty DMZ patch notes detail DMZ Orders, Dynamic Ops, operator rescues, and FOB crafting. Here's everything that changed.
Call of Duty DMZ Review: First Impressions of Modern Warfare 4's Extraction Mode
Our Call of Duty DMZ review breaks down Modern Warfare 4's extraction mode: progression, PvP pacing, controller support, and whether Hajin City delivers.
Call of Duty DMZ Update: Hajin Map, FOB Overhaul, Traits & Season 1 Roadmap Revealed
The Call of Duty DMZ update details the massive Hajin Exclusion Zone, a revamped FOB, trait trees, AI commanders, and the Season 1-2 roadmap.
Call Of Duty DMZ Discord: Best Servers, Squad Finder Tips & Community Guide
Find the best Call Of Duty DMZ Discord servers, learn squad-finder etiquette, and discover how the community can boost your extraction success rate.
Call of Duty DMZ Player Count: How Many People Are Playing MW4's Extraction Mode?
Tracking the Call of Duty DMZ player count in 2026? Here's where to find live numbers, why they matter for PvPvE, and how MW4's relaunch shakes things up.