The M4A4 | Tornado skin was added to CS:GO on the Operation Bravo update on September 19, 2012.
The M4A4 | Tornado skin features a green, gray, and black camouflage pattern resembling a tornado swirling over the surface of the weapon.
The M4A4 | Tornado skin has moderate popularity due to its inclusion in early CS:GO operations. As a classified skin, it has lower demand compared to covert skins.