Utility Cards is a feature of Warzone: Evolved. Utility Cards are achieved by finishing matches, finishing certain assignments and through leveling. There are 3 tiers of Utility Cards: Proficiency, Aesthetics and Specialty. There are 5 levels of rarity for the cards, from common to rare: Iron, Bronze, Silver, Gold and Obsidian.
Proficiency cards can be used to customize your weapon with.
Aesthetics cards can be used to customize your weapon and operator aesthetically, as well as new art styles for HUDs or maps.
Specialty cards can be used to customize your operator and grant boosters to perks and equipment.