---
title: "Call of Duty 4: Modern Warfare (2007): Complete Guide"
game: "Call of Duty 4: Modern Warfare (2007)"
game_url: "https://qna.gg/games/call-of-duty-4-modern-warfare-2007"
author: "Qloud"
author_url: "https://qna.gg/players/Qloud"
topics: ["Maps", "Classes"]
summary: "A guide to the original 2007 Call of Duty 4 on PC: a mission-by-mission campaign outline, intel and Arcade/cheat unlocks, Veteran survival tips, and how the classic multiplayer works on community servers today.…"
url: "https://qna.gg/g/call-of-duty-4-modern-warfare-2007-complete-guide-90edf7d4"
published: "2026-09-27T17:33:42.338Z"
updated: "2026-09-27T17:33:42.338Z"
source: "QnA.GG"
---

# Call of Duty 4: Modern Warfare (2007): Complete Guide

A guide to the original 2007 Call of Duty 4 on PC: a mission-by-mission campaign outline, intel and Arcade/cheat unlocks, Veteran survival tips, and how the classic multiplayer works on community servers today.

*Researched September 2026 — current as of the final PC patch 1.7 (no official updates in many years; the Steam page carries no recent announcements). Live games change; check the linked sources if something differs.*

> **Which version is this?** This guide covers the **2007 original** (Steam app 7940), not *Modern Warfare Remastered* (2016) or the 2019 *Modern Warfare* reboot. The original's multiplayer is still playable on PC through community-hosted dedicated servers found in the in-game server browser.

## Quick Start

1. **Take the aim test in F.N.G.** The training mission at Credenhill has you run a timed course, and the game recommends a difficulty based on your performance.
2. **Difficulty options:** Recruit, Regular, Hardened, Veteran. Veteran is famously brutal; do a first run on Regular or Hardened.
3. **Hunt the enemy intel.** 30 laptops are hidden across the campaign. Collecting them unlocks cheats for replaying missions.
4. **Grenades are the real threat on Veteran.** Watch the grenade indicator and move immediately.
5. **Cover is everything.** Health regenerates, but only if you stop taking hits. Break line of sight constantly.
6. **Multiplayer levels you up and unlocks gear.** Create-a-Class opens early, with guns, attachments and perks unlocking as you rank up to the level cap of 55, followed by optional Prestige.
7. **Killstreaks:** 3 kills for a UAV, 5 for an airstrike, 7 for an attack helicopter.
8. **The epilogue is hidden.** Finish the campaign and sit through the credits to unlock **Mile High Club**.

## Campaign Outline

You alternate between **Sgt. John "Soap" MacTavish** of the British SAS (with Captain Price and Gaz) and **Sgt. Paul Jackson** of the U.S. Marines, fighting Russian Ultranationalists and a Middle Eastern coup.

| # | Mission | Notes |
|---|---|---|
| 1 | F.N.G. | Training and aim test; sets your recommended difficulty |
| 2 | Crew Expendable | Night boarding of a cargo ship in a storm |
| 3 | The Coup | A scripted sequence, no combat |
| 4 | Blackout | SAS night raid to rescue an informant |
| 5 | Charlie Don't Surf | Marine assault on a Middle Eastern city |
| 6 | The Bog | Night defense of a stranded tank |
| 7 | Hunted | SAS escape on foot from a downed helicopter |
| 8 | Death From Above | AC-130 gunship support mission |
| 9 | War Pig | Escorting a tank through a hostile town |
| 10 | Shock and Awe | Marine assault climax |
| 11 | Aftermath | Short scripted sequence |
| 12 | Safehouse | SAS assault on a farmhouse in Russia |
| 13 | All Ghillied Up | Flashback stealth mission in Pripyat as Lt. Price |
| 14 | One Shot, One Kill | Flashback continuation, including the famous long-range shot and the Ferris wheel defense |
| 15 | Heat | Fighting retreat down a hill |
| 16 | The Sins of the Father | Chase through a town |
| 17 | Ultimatum | SAS and Russian Loyalist push after Zakhaev's escalation |
| 18 | All In | Pushing into a military base |
| 19 | No Fighting in the War Room | Timed infiltration of a missile facility |
| 20 | Game Over | The finale |
| Epilogue | Mile High Club | A short hostage rescue aboard a hijacked plane |

### Mission tips
- **Crew Expendable:** clear corners methodically on the ship; the timer only matters at the end, so sprint once it starts.
- **Charlie Don't Surf / Shock and Awe:** lots of enemies shoot from windows and rooftops. Advance cover to cover.
- **The Bog:** use your night vision and the tank's fire; hold positions rather than charging.
- **Death From Above:** identify friendlies (they flash) before firing the heavier guns.
- **All Ghillied Up:** follow Captain MacMillan's lead exactly. Going prone in grass and waiting for patrols to pass is the intended approach.
- **One Shot, One Kill:** account for bullet drop and wind on the long shot; during the defense at the Ferris wheel, place claymores at approaches and use every piece of cover.
- **Heat:** fall back steadily; staying too long in one position is how you get flanked.
- **No Fighting in the War Room:** time pressure is real. Clear, advance, repeat without hesitating.
- **Mile High Club:** on Veteran it is a notoriously tight timed run; memorize the enemy positions.

## Intel, Arcade Mode and Cheats

- **Enemy Intel** are laptops hidden in levels. There are 30 in total.
- **Cheats** unlock at intel milestones and can be toggled when replaying missions. They include visual filters and gameplay modifiers, such as infinite ammo and slow motion.
- **Arcade Mode** unlocks after completing the campaign. Enemies award points, you have lives, and a timer counts down; it turns missions into score attack runs.
- Cheats cannot be used for your first clear; they are rewards for replays.

## Veteran Survival Tips

- **Move less, peek more.** Most deaths on Veteran come from exposing yourself to several enemies at once.
- **Enemies respawn until you cross a trigger.** In some areas, holding a position forever does not work; advance to the next piece of cover to stop the flow.
- **Throw grenades back or run.** When the indicator appears, sprint away instead of trying to finish the fight.
- **Use flashbangs.** They freeze enemies in rooms and hallways, making clears much safer.
- **Checkpoint awareness.** Checkpoints appear on the screen; after one, plan your next push rather than improvising.

## Multiplayer

### How to play in 2026
- Launch the multiplayer executable from Steam and open the **server browser**. All matches run on community-hosted dedicated servers.
- Server quality varies. Look for low ping and an active population.
- **CoD4x** is a long-running community project that extends CoD4 client and server functionality; many servers run it and may prompt you to install its client. Only download it from the project's official site.

### Create-a-Class and progression
- Rank up by earning XP from kills, objectives and challenges. The level cap is **55**, after which you can **Prestige** to reset and earn an emblem.
- Guns unlock as you rank; attachments (red dot, ACOG, grip, silencer, and camos) unlock through weapon challenges.

### Perks
Each class takes one perk from each tier:

| Tier 1 (equipment) | Tier 2 (core) | Tier 3 (utility) |
|---|---|---|
| C4 | Stopping Power | Extreme Conditioning |
| Special Grenades (extra flash or stun) | Juggernaut | Steady Aim |
| RPG-7 | Sleight of Hand | Last Stand |
| Claymore | Double Tap | Martyrdom |
| Frag x3 | Overkill | Deep Impact |
| Bandolier | UAV Jammer | Iron Lungs |
| Bomb Squad | Sonic Boom | Dead Silence |
| | | Eavesdrop |

Popular choices: **Stopping Power** (more bullet damage) is the default Tier 2 for most classes. **Deep Impact** (bullet penetration) and **Steady Aim** (hip-fire accuracy for SMGs and LMGs) are strong Tier 3 picks.

### Killstreaks
| Streak | Reward |
|---|---|
| 3 kills | UAV (shows enemies on your radar) |
| 5 kills | Airstrike |
| 7 kills | Attack helicopter |

Kills from killstreak rewards do not count toward the next streak.

### Maps
Classic maps include **Ambush, Backlot, Bloc, Bog, Countdown, Crash, Crossfire, District, Downpour, Overgrown, Pipeline, Shipment, Showdown, Strike, Vacant** and **Wet Work**. The Variety Map Pack added **Broadcast, Chinatown, Creek** and **Killhouse**; on PC it was a free download (June 2008, sponsored by Nvidia), so any up-to-date PC install has them. Shipment and Killhouse are tiny, frantic maps; Overgrown, Bog and Countdown are larger and reward snipers.

### Modes
Team Deathmatch, Free-for-All, Domination, Headquarters, Sabotage and Search and Destroy, plus Hardcore variants on many servers (lower health, minimal HUD).

## Common Mistakes to Avoid

- **Running through open ground on Veteran.** Cover to cover, every time.
- **Missing intel.** It is easy to rush past; replaying missions costs time.
- **Using the airstrike on empty areas.** Wait for a UAV sweep or a known cluster of enemies.
- **Sniping without Stopping Power.** Many sniper rifles need it for reliable body kills.
- **Joining the first server you see.** High ping ruins CoD4's fast gunfights.
- **Installing random "fix" downloads.** Stick to official patches and well-known community projects.

## Advanced Tips

- **Pre-aim common angles.** CoD4's fights are won by whoever is already aiming at the right spot.
- **Use the radar.** Enemies firing unsilenced weapons appear as red dots; a UAV shows everyone.
- **Throw flashbangs before entering rooms.** Stunned enemies cannot fight back.
- **Pick perks for the map.** UAV Jammer on radar-heavy servers, Dead Silence on small maps, Deep Impact on maps with thin walls.
- **Campaign speedrun routes:** replaying missions with Arcade mode trains you to move fast and aggressively.

## FAQ

**Is CoD4 (2007) multiplayer still alive on PC?**
Yes, through community-hosted servers in the in-game browser. Populations are smaller than in its prime but active servers remain.

**How many intel pieces are there?**
30 enemy intel laptops across the campaign.

**How do I unlock Mile High Club?**
Complete the campaign and let the credits roll; the epilogue follows.

**What is Arcade Mode?**
A score-attack version of the campaign unlocked after completion, with points, lives and a timer.

**Should I play the original or Modern Warfare Remastered?**
The original is cheaper and has community servers; the Remastered version updates visuals and has its own official multiplayer.

**What is the level cap?**
Level 55, followed by Prestige (up to ten times).

**How do I use the intel cheats?**
Collect intel to unlock them, then toggle them from the cheats menu when replaying missions. They are meant for replays rather than your first clear; turn them off for any run where you want a clean difficulty completion.

## Sources

- [Call of Duty 4: Modern Warfare – Wikipedia](https://en.wikipedia.org/wiki/Call_of_Duty_4:_Modern_Warfare)
- [Steam store page (app 7940)](https://store.steampowered.com/app/7940/)
- [CoD4x community forum](https://cod4x.ovh/)