There are many different weapons in BR1: INFINITE. They can vary from melee weapons to long-range weapons. You can learn more about each individual weapon category in the Weapons & Items Guide.
When a player opens BR1: INFINITE for the first time, they are given a set of Base Weapons to use in-game. With these weapons, you can customize your Loadout & Backpack to ensure you spawn with the items you want to use in your hot bar. More information on the Base Weapons in the Weapons & Items Guide.
You can always press ' i ' in game to open your backpack and drag different weapons into your hot bar.
Players are able to obtain different Weapon Skins for each weapon to add to their in-game aesthetic, additionally some weapon skins provide an 'Earnings Retention Bonus' in-game.
Earnings retention bonuses go up to 5% per weapon, and can be stacked to achieve the max earnings bonus. Users can equip a maximum of 10 Weapon Skins + 1 Operative to achieve the highest earnings bonus possible.
If a player manages to collect the same Weapon Skin for each weapon category, they will be granted a higher 'Earnings Retention Bonus'. This Earnings Retention Bonus will depend on the rarity of the Weapon Set.
Weapon Skins and Weapon Sets vary in Rarity, similar to BR1: Operatives. The overall aesthetic and Earnings Retention bonus depends on how rare the skin/set is.