Call of Duty 4: Modern Warfare
Call of Duty 4: Modern Warfare

Crafting & Upgrading — Call of Duty 4: Modern Warfare Guide

Enhance your arsenal and gear through crafting and upgrading in Call of Duty 4: Modern Warfare. Master the workbench for a tactical edge against tough enemies.

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Crafting & Upgrading

While Call of Duty 4: Modern Warfare (RPG) focuses heavily on tactical combat and narrative, the robust crafting and upgrading system allows players to significantly enhance their arsenal and gear, providing a crucial edge in the field. Mastering this system is key to tackling higher difficulties and specialized missions.

The Workbench: Your Tactical Hub

All crafting and upgrading activities take place at a Workbench. These can be found in various locations:

  • Forward Operating Bases (FOBs): Every FOB you establish or liberate will have a dedicated Workbench, often near the armory.
  • Safe Houses: Smaller, more discreet Workbenches are available in safe houses, particularly useful for mid-mission adjustments.
  • Mobile Deployment Units (MDU): For a small fee of 500 Credits, you can call in an MDU to your current location, which includes a temporary Workbench. This is invaluable during extended engagements or when far from a permanent base.

Weapon Crafting: Building from the Ground Up

Crafting new weapons requires specific schematics and raw materials. Schematics are often mission rewards, found in hidden caches, or purchased from specialized vendors.

Acquiring Schematics

  • Mission Rewards: Completing main story missions or high-value side operations often grants schematics for advanced weaponry. For example, the schematic for the M4A1 Carbine (Enhanced) is a reward for successfully neutralizing the "Desert Serpent" target in Act 2.
  • Hidden Caches: Keep an eye out for these. In the "Bog" mission, a hidden cache containing the AK-47 (Tactical) schematic can be found behind the overturned bus near the main objective. Use your binoculars to spot glints.
  • Black Market Vendors: Certain illicit traders, like "The Fixer" in the "Safehouse District" of Act 3, sell rare schematics for a premium. Expect to pay upwards of 2,500 Credits for high-tier weapon blueprints.

Gathering Materials

Materials are salvaged from defeated enemies, looted from containers, or purchased.

  • Common Materials:
    • Scrap Metal: Dropped by most enemy combatants. Essential for basic weapon components.
    • Polymer Composites: Found in weapon crates and supply drops. Used in grips, stocks, and lighter frames.
  • Uncommon Materials:
    • Refined Alloys: Salvaged from armored enemies (e.g., Juggernauts) or found in industrial zones. Crucial for barrel and receiver upgrades.
    • Electronic Components: Looted from enemy tech specialists or found in server rooms. Necessary for smart scopes and laser sights.
  • Rare Materials:
    • Kevlar Weave: Extremely rare, dropped by elite enemy units or found in secure military installations. Used in reinforced weapon parts and armor.
    • Depleted Uranium: Found in highly irradiated zones or from specific high-value targets. Required for armor-piercing modifications.

Crafting Process

  1. Interact with a Workbench.
  2. Select the "Craft Weapon" option.
  3. Choose the desired schematic (e.g., M4A1 Carbine (Enhanced)).
  4. If you have the necessary materials and credits (typically 500-1500 Credits depending on weapon tier), confirm the craft.
  5. The weapon will appear in your inventory.

Weapon Upgrading: Fine-Tuning Your Firepower

Upgrading existing weapons allows you to improve their stats and add attachments. Each weapon has a limited number of upgrade slots (typically 3-5).

Upgrade Categories

  • Barrel: Improves range and accuracy.
    • Example Upgrade: Heavy Barrel (Refined Alloy x3, 250 Credits) - +10% Range, +5% Accuracy.
  • Optic: Enhances targeting and visibility.
    • Example Upgrade: ACOG Scope (Electronic Components x2, 300 Credits) - 4x Magnification, -5% ADS Time.
  • Magazine: Increases ammunition capacity or reload speed.
    • Example Upgrade: Extended Mag (Polymer Composites x2, 200 Credits) - +15 Rounds Capacity.
  • Stock: Reduces recoil and improves stability.
    • Example Upgrade: Tactical Stock (Scrap Metal x4, 150 Credits) - -10% Recoil.
  • Underbarrel: Adds utility like grenade launchers or foregrips.
    • Example Upgrade: Foregrip (Scrap Metal x2, 100 Credits) - +5% Stability.

Upgrade Process

  1. Interact with a Workbench.
  2. Select the "Upgrade Weapon" option.
  3. Choose the weapon you wish to upgrade from your inventory.
  4. Available upgrade slots will be highlighted. Select an empty slot.
  5. Browse the list of available upgrades for that slot. Each upgrade will display its material and credit cost, along with its stat benefits.
  6. Confirm the upgrade. The materials and credits will be deducted, and the weapon's stats will update immediately.

Armor & Gear Upgrading: Fortifying Your Defense

Beyond weapons, your armor and tactical gear can also be upgraded to provide better protection and utility. This is crucial for survivability in intense firefights.

Armor Upgrades

Armor upgrades primarily focus on increasing damage resistance and reducing mobility penalties.

  • Body Armor:
    • Example Upgrade: Reinforced Plates (Kevlar Weave x2, Refined Alloy x1, 400 Credits) - +15% Ballistic Resistance, -2% Movement Speed.
  • Helmet:
    • Example Upgrade: Integrated Comms (Electronic Components x3, 350 Credits) - +5% Headshot Resistance, Enables Squad Link perk.

Gear Upgrades

Tactical gear upgrades enhance their effectiveness or provide additional uses.

  • Grenade Pouch:
    • Example Upgrade: Expanded Pouch (Polymer Composites x1, 100 Credits) - +1 Grenade Slot.
  • Medkit:
    • Example Upgrade: Advanced Stimulants (Medical Supplies x2, 200 Credits) - +25% Healing Rate. (Medical Supplies are a unique material found in medical facilities or dropped by medic enemies).

Upgrade Process

The process for upgrading armor and gear is identical to weapon upgrading:

  1. Interact with a Workbench.
  2. Select the "Upgrade Armor/Gear" option.
  3. Choose the item you wish to upgrade.
  4. Select an available upgrade slot.
  5. Confirm the upgrade, ensuring you have the necessary materials and credits.

Strategic Considerations

  • Prioritize Early: Don't wait until late game to start crafting and upgrading. Even basic upgrades can make a significant difference in early missions.
  • Material Management: Always be on the lookout for materials. Loot every enemy and container. Consider purchasing common materials from vendors if you're consistently low.
  • Specialized Builds: Tailor your upgrades to your playstyle. A stealth player might prioritize suppressor upgrades and lighter armor, while a frontline assault player would focus on damage and ballistic resistance.
  • Resource Scarcity: Rare materials like Kevlar Weave and Depleted Uranium are extremely valuable. Save them for your primary weapon and critical armor pieces.
  • Experimentation: Don't be afraid to try different upgrade combinations. You can always disassemble an upgrade (for a partial material refund) if it doesn't suit your needs.