The Whirlwind is a primary weapon for all classes in Blitz Brigade. It is a slightly newer gun in the game, and came in an update in 2014 along with The Meltdown, the Winslow SMG, and the Lovely Lisa. For stats, the damage is great and is supplied with a rate of fire that is the highest out of all the other special primary weapons. The range is good and the ammo capacity, while it does not sound like much, is actually pretty good because of its lower rate of fire.
The only bad thing about this gun is the critical chance, which is at 0%. A unique feature about this gun is that after an enemy gets killed or something gets destroyed, it leaves a blue aura which lasts for a while. Enemies who enter the aura will be propelled high in the air and become dizzy. Overall, this gun is very good, but a price tag of 1400 diamonds makes it very expensive. It is based on an older rifle.