Hi! 4th suggestion for limited time weapons, contrarily to the suggestions before, we're going for a more realistic weapon.
The Defensive Gun
Defensive Gun is gun (yes) which fires big Rubber Balls, those exists IRL, they're call "Flash Ball" (which is a copyrighted name btw, meaning why I name it "Defensive Gun" here) where I live, they're used by police force in violent protests, it's not a lethal weapon by design.
Gameplay/mechanic : Defensive Gun fires 1 Rubber Ball per use in a range between shotgun and pistol (between 50 to 70 SAU depending of the rarity?).
Defensive Gun deals 1 Armor Point of damage and between 30 to 45 Health Point of damage (if no armor).
When a player is hit by a Defensive Gun's Rubber Ball, they take a violent knock-back in the same direction of the Rubber Ball, when a player is being knock-backed they can't do anything (contrarily to the **Blunderbuss **self Knock-back), they can move again only when knock-backed is finished.
Knock-back Strength is dependent of the range when hit (close hit = Very strong, distant hit = weak).
When a knock-backed player touches anything solid (walls/trees/rocks/barrels etc.), they take additional Health Point damages (ignoring armor this time), additional damages vary with the Knock-back Strength (between 25 to 50?).
Player may be stunned if they hit something when knock-backed (but I don't know if it's a good idea, the gun could be overpowered with this, but duration of this would depends of the knock-back strength).
So yeah, this weapon is like an opposite of the Blunderbuss. Like shotgun it's very effective in tight areas and could be especially useful for players hiding in houses and such. It can also be used to evade when in a vast area.
Looting : Ground (Common, Uncommon, Rare), Rebel Caches (Rare)
Magazine size : 2
Ammos : Shells
Event : I don't know!
This is it I think? See you for another suggestion! 