The Magach 6B Gal was an important upgrade developed by Israel before the 1990s. Since it was obvious that the Merkava would not entirely replace the Magach in service it was deemed necessary an upgrade to older models like the Magach 6B and A that lacked any sort of modern military electronics and optics. As such, the "Gal" Fire Control System was created and then fitted into the Magach 6B and 6A models. It was not given to the C model since this used a more modern American fire control system. The Magach 6B Gal would later be upgraded to the Magach 6B Gal Batash with improvements to the protection and powerplant.
It was introduced in Update "La Royale". The Magach 6B Gal has a decent performance for it's BR, compared to very common tanks like the T-72M1 and Leopard 1A1, it lacks the mobility of the former and the protection of the latter, but it compensates this with a decent protection against HEAT projectiles and missiles, as well as autocannon ammunition. This is very important at it's BR and is thanks to the Blazer ERA, it would be enough to stop small rockets and missiles, which are very common at that BR with early ATGMs launched from rockets and different IFVs. The mobility, while poor, is not enough to make the vehicle slow, and the Magach 6B Gal has decent acceleration and top speed, it mostly lacks reverse speed like Soviet Tanks around it's BR.