Zombies Contracts & Mission Types

BO7 flips the classic round system into a contract-driven progression similar to DMZ and Outbreak. Every contract increases your World Tier—Treyarch's modern version of BO7 Bot Lobbies "rounds."

Common Contract Types

    Secure Zone – Hold down a contaminated area

    Purge Nest – Clear Aether-infested biomass

    Escort Drone – Protect a scouting drone

    Elite Hunt – Track and kill an elite zombie variant

    Data Recovery – Defend terminals as they upload intel

World Tier Difficulty

Instead of Round 1, 2, 3… you progress via World Tiers:

    Tier 1: Slow zombies, low health

    Tier 2: Faster, more aggressive

    Tier 3: Regular elite zombies

    Tier 4+: Chaos begins

    Tier 5+: "Extract or die" territory

Contracts = Progression

Complete more → enter higher tiers → get better rewards.

Best Starter Weapons in BO7 Zombies

AMR9 (SMG)

Ideal for tight interior Dead Zones. Fast reloads, great handling.

Krig 6C (AR)

The safest all-around weapon. Low recoil, reliable ammo use, and great mid-tier survivability.

WSP-9 (SMG)

A cheap wall-buy with excellent mobility—perfect for starting players.

Combat Knife

Still elite for early salvage farming and one-hit kills during opening tiers.

Pack-a-Punch System

BO7's Pack-a-Punch stays true to Treyarch's classic formula:

PaP Tiers

    Tier 1 – 5,000 Essence: +50% damage

    Tier 2 – 15,000 Essence: Unlocks elemental mod

    Tier 3 – 30,000 Essence: +100% damage boost

Elemental Mods

    Cryo-Freeze – Best for early game control

    Dead Wire – The late-game meta

    Napalm Burst

    Brain Rot

Recommended progression:

Start with Cryo-Freeze → switch to Dead Wire in late tiers.

How to Survive Longer in BO7 Zombies

Rotate constantly—don't camp.

Camping is dead in BO7. Rotations = survival.

Upgrade armor before PaP.

Tier 2 armor is more impactful than a Tier 1 PaP gun.

Carry Stims and Semtex.

Stims save lives, Semtex clears tight rooms.

Know when to BO7 Bot Lobbies for sale extract.

If you reach Tier 4 with no perks or armor, extraction is the smart play.

Solo strategy:

Stick to rooftops and long-sightline labs for safe looping.