Digital Camouflage

Digital camouflage is the pattern of camouflage used by the U.S. Army and Marines under the name "UCP", used in the U.S. Army's Army Combat Uniform (ACU) and "MARPAT", used in the Marine Corps Combat Utility Uniform (MCCUU). Digital is a common camouflage pattern with different color combinations, but the one in game specifically is UCP. It also uses a certain pattern to break up the outline of the person or item camouflaged so as to make it more difficult for the human eye to detect.

The United States Army's UCP Digital camouflage has replaced tri-color desert and M85 woodland and is now the only camouflage officially worn by the United States Army, although Special Forces soldiers often customize their gear to the point where they look no different than civilians or their enemy. The Marine Corps have their own system of digital camouflage for every environment. Digital camouflage is proven to be more effective than woodland camouflage.

Call of Duty 4: Modern Warfare
In Call of Duty 4: Modern Warfare, Digital camouflage is available after achieving 25 headshots with a specific weapon. Weapon camouflages alter gameplay very little, and can only be used during online multiplayer. This is among the few camouflages that actually aid in concealing the player, as it effectively breaks up the outline of the weapon and makes the weapon harder to see on almost all surfaces. The camouflage is transparent and can help break up the outline of weapons from long range. For example, using the digital camouflage on an M40A3 makes it less noticeable by breaking up its large, solid-green body.

Modern Warfare 2
The camo returns to Modern Warfare 2, after earning 15 headshots with any Primary Weapon. The only main difference is a brighter hue on brighter maps, such as Favela or Afghan, but it still retains most of the features found in Call of Duty 4. As of the other camos, it's quickly disregarded with higher camos being unlocked, as camouflage is shown as a sign of rank (More camos require higher headshot counts), rather than a practical means of blending into environments.