The Upgrade Tier of your weapon is visible on your HUD, as the color behind the ammo and reserves, along with a small diamond icon, signifies the Tier of damage your weapon is capable of inflicting. Use increasing amounts of Salvage to add potency to your weapon damage:
- Uncommon (Green): Tier 2 Damage
- Rare (Blue): Tier 3 Damage
- Epic (Purple): Tier 4 Damage
- Legendary (Orange): Tier 5 Damage