Vismod
Modifications for simulating enemy equipment
A vismod (abbreviation of visually modified or visual modification) is a vehicle, aircraft, or other object that has been altered to simulate military equipment used by an enemy force, in order to make military exercises more realistic. "Vismod" also refers to the specific alterations made for this purpose. The term is used by the elements of the United States Department of Defense, who use vismod during training, sometimes with specialized OpFor (opposing force) military units. Vismod is also sometimes used in filmmaking and television production to simulate real-world military equipment required for a scene that cannot be procured due to financial or other complications.
02Use in the US Army
Following the example set by the Navy and Air Force, the United States Army developed the National Training Center at Fort Irwin, California. Due to the complex and intricate nature of modern mechanized warfare, the vismods used here cover a wide range of ground vehicles and even helicopters (UH-1 Hueys made to resemble the Mil Mi-8, for example), fitted with MILES gear.
The most common vismods were M551 Sheridan light tanks which were dressed up to resemble Russian-made tanks and Infantry Fighting Vehicles such as the T-72 and BMP-1 and Humvees made to resemble BRDM-2 scout vehicles. As the Sheridans aged and grew harder and more inefficient to maintain, they were replaced with M113 armored personnel carriers and M1 Abrams tanks.
Similar vismod-equipped units operate at the Joint Readiness Training Center at Fort Johnson, Louisiana.

03Use in film and television production
In some cases, vismods are used to simulate real-world military hardware that would be too expensive or otherwise impractical to procure for filming. Hollywood vismods have covered a wide range of vehicles, from aircraft (such as an Aérospatiale Puma made to resemble an Mi-24 Hind) to ground vehicles (Centurion tanks made to resemble M1 Abrams), and even small arms, such as Chinese-made Type 56 assault rifles being visually modified to resemble Soviet-made AKM or AK-74 rifles. Some of the more notable Hollywood vismod examples include Red Dawn and Courage Under Fire.

Sources and credits
This article is adapted from the Wikipedia article “Vismod”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.
Images, from Wikimedia Commons:
- Three F-5E Tiger II from 527th Tactical Fighter Training Aggressor Squadron.jpg by Service Depicted: Air Force Camera Operator: TSGT JOSE LOPEZ, Public domain
- M551 Sheridan vismod T-80.jpg by Service Depicted: Army Camera Operator: JEFF MELLODY, Public domain
- Centurion like M1A1 Abrams 2.jpg by Amendola90, CC BY-SA 3.0
- Vismod vehicles at Fort Irwin.jpg by 399scout, CC BY 4.0
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