The Call of Duty: Black Ops series has always emphasized progression, and Black Ops 7 takes it a step further with its new Arsenal and Rarity Upgrade system. Whether you’re battling through Zombies, grinding in multiplayer, or testing weapons in private sessions, understanding how weapon rarity affects your loadout can make a huge difference.

This guide breaks down everything you need to know about weapon rarities, upgrade paths, and how to get the most out of your Arsenal in Black Ops 7.

Understanding the Arsenal System

The Arsenal in Call of Duty: Black Ops 7 functions as a central upgrade hub where players can enhance their weapons, equipment, and armor. Each weapon now comes with a rarity level, which directly affects its damage, handling, and even attachment bonuses.

There are five main rarity tiers:

  1. Common (Gray) – Base-level weapon, no bonuses.
  2. Uncommon (Green) – Slight stat increases and faster reloads.
  3. Rare (Blue) – Noticeable damage boost and improved recoil control.
  4. Epic (Purple) – Adds attachment bonuses and special passive effects.
  5. Legendary (Gold) – Maximum damage, enhanced handling, and potential elemental traits in Zombies mode.

The higher the rarity, the stronger the weapon’s performance, but upgrading isn’t just about spending points — it requires smart resource management.

How to Upgrade Weapon Rarity

To increase weapon rarity, visit the Arsenal Workbench, found in both multiplayer loadout menus and in-game Zombies safe zones. You’ll need two key components:

  • Salvage Materials – Earned by defeating enemies, completing contracts, or dismantling weapons.
  • Aetherium Crystals (Zombies mode) – Special materials dropped by elite enemies or from completing rounds.

Each upgrade tier costs progressively more materials, so it’s important to prioritize your main weapon early. In Zombies, upgrading a weapon from Common to Legendary can easily triple its effectiveness.

Players who train in cod bo7 bot lobbies often practice efficient material farming routes, testing how fast they can collect enough salvage to upgrade mid-match. It’s a great way to fine-tune your strategy before entering ranked or public matches.

Rarity Bonuses and Synergy

Each rarity level doesn’t just boost stats — it adds unique gameplay modifiers. For example:

  • Epic-tier weapons may include attachment synergy bonuses that reduce ADS (aim-down-sight) time or increase damage when crouched.
  • Legendary-tier weapons in Zombies can gain elemental effects like Fire Burst or Electric Chain, perfect for crowd control.

The new system also encourages weapon experimentation. Mixing rarities in your loadout can help balance short-range and long-range combat.

Veteran players recommend using buy bo7 bot lobbies to test different weapon setups under controlled conditions. It allows you to simulate high-intensity fights while comparing how rarity upgrades change your performance.

Upgrading Beyond Weapons: Armor and Equipment

Your Arsenal doesn’t stop at weapons. Armor, grenades, and field upgrades also benefit from rarity scaling. For instance:

  • Higher-tier armor reduces incoming damage and adds resistance to elemental effects.
  • Upgraded grenades have larger blast radii or quicker recharge times.
  • Field upgrades like Energy Mine or Healing Aura scale with rarity, extending their duration or impact.

Keeping all components balanced is key to surviving later rounds in Zombies or maintaining dominance in objective-based multiplayer modes.

Best Strategies for Fast Progression

If you want to master the Arsenal system quickly, here are a few practical tips:

  1. Focus on One Weapon Early – Don’t spread your resources too thin. Fully upgrading a single reliable weapon pays off.
  2. Farm Salvage Efficiently – Aim for high-density enemy areas or replay contracts. Many players test farming routes in cod bo7 bot lobbies before going live.
  3. Use U4N Community Resources – Players on U4N have shared detailed charts on salvage drop rates, Aetherium farming spots, and upgrade cost breakdowns. It’s worth checking to optimize your strategy.
  4. Combine Arsenal Perks with Field Upgrades – For example, pair a Legendary-tier shotgun with an overcharged Energy Mine for close-range dominance.

Final Thoughts

The Arsenal and Rarity Upgrade system in Call of Duty: Black Ops 7 adds depth to the core gameplay loop, rewarding preparation and experimentation. Understanding when and how to invest your materials can make all the difference, especially during late-round Zombies runs or competitive matches.

Whether you’re optimizing loadouts, testing damage values, or training through buy bo7 bot lobbies, mastering rarity upgrades will ensure your weapons always hit harder and perform smoother.

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