Optic camouflage
From Command and Conquer Wiki
Placing emphasis on guerrilla combat, tactics and stealth, the Brotherhood developed a technology named the Lazarus shield, which was essentially an adaptive camouflage system, rendering any object/user invisible. The system has been first introduced in the First Tiberium War and has been used by Nod ever since.
The first units to utilize this technology were the Ezekiel's Wheel stealth tanks, equipped with rocket launchers. Staying invisible, they could sneak up on unsuspecting GDI forces and cause major damage to unprotected ordnance and facilities without warning. During the course of the war, personal Lazarus shield cloaking systems were developed under the codename Ezekiel's Cape and issued to the elite Black Hand Chameleon units. Their wearers were rendered nearly completely invisible, and as such used as spies, assassins and saboteurs, all of these roles supported by their standard issue Firefly laser rifle. Firing (as always) disrupted the stealth field. However, in the First Tiberium War, the stealth technology was still being perfected, and all cloaked units could be seen by infantry at close range when a distortion effect occurred around the cloaked object.
In the Second Tiberium War, the perfected stealth technology allowed for construction of a stationary stealth generator, which under sufficient power could cloak entire buildings in a 200m radius. These devices were used to protect critical installations, most notably the prototype factory, where Nod manufactured the first series of Banshee fighters. Towards the end of the war, Nod developed mobile stealth generators, which could be deployed and relocated easily, but with a smaller cloaking radius. Personal Lazarus shield systems also found their use, as they were employed by Nod's Chameleon Spies, elite stealth units used to infiltrate and sabotage GDI operations. Newer stealth tanks were still in wide use among Nod forces.
Following the Firestorm Crisis, Nod's vast archives were mostly destroyed. Somehow, however, GDI managed to procure an exact copy of Nod's stealth research; however they were unable to reverse engineer it, and the data was archived and left defunct inside a largely abandoned GDI base in Australia. LEGION was sent to retrieve what was rightfully Nod's, and managed to capture the laboratory the research was being decrypted at; then upload the data. With their database back, Nod further extensively researched and further upgraded their stealth systems, resulting in the development of Vertigo stealth bombers, highly efficient and inexpensive Disruption towers, advanced Stealth tanks, cloaked Specter artillery and Harvesters, next-generation stealth suits used by Nod's elite Shadow Teams and personal cloaking devices (used by the Nod Commando). Other products include Disruption pods and the Cloaking field support power.
[edit] Disadvantages
The stealth bubble's flaws that have never been countered due to the nature of the technology are that if stealth tanks run over infantry they will temporarily reveal itself, units and structures firing will also temporarily decloak. Also, all stealthed units can be detected with sufficiently advanced sensors (which are rare, due to their cost and sophistication). If a stealth vehicle is heavily damaged it will have a hard time cloaking.
