Casual counts the loadout you start the match with - mid-match swaps are not tracked.
Weapons Tier List Season 12
TIER S weapons
The best top-tier weapons for each class in The Finals Season 12. They are the most efficient for most scenarios and modes
TIER A weapons
The most successful weapons used by the majority of players, aside from the top S-tier list
TIER B weapons
Mid-level weapons that are somewhat situational but still popular and successful among many users
TIER C weapons
Less popular weapons that are even more situational and require specific conditions to be effective in matches
TIER D weapons
Very specific niche weapons that aren't favored by most players
TIER E weapons
The least-used weapons, mostly picked for fun and rarely capable of delivering good results in The Finals