Before September 2003, it was tested on a Leopard 2 tank by the German Bundesamt für Wehrtechnik und Beschaffung [de].
[1] The German Puma infantry fighting vehicle has been equipped with MUSS, after EADS was awarded a contract in 2006.
In July 2016, the UK's Defence Science and Technology Laboratory placed a £7.6 million contract with QinetiQ to evaluate the MUSS system for armoured vehicles, particularly the Challenger 2 main battle tank.
[5] The development of MUSS 2.0 was commissioned by the Federal Office of Bundeswehr Equipment, Information Technology and In-Service Support and includes optimizations in regards to size and weight while improving the capabilities of the missile warners and laser detectors.
[2] When the sensors detect an incoming missile or a laser beam aimed at the vehicle, the computer activates the countermeasures.