Often referred to as the "G6 Rhino" or simply the "Rhino", the G6 entered service and serial production with the South African Army in 1988. It was a self-propelled version of the G5 Howitzer series. It has been operated not only by the South African Army, but also Oman and the United Arab Emirates, a combined total of just over 100 exports. It has seen combat in the South African Border War as well as the ongoing Yemeni Civil War.

Introduced in Update "Danger Zone", the G6 has situational utility as a support vehicle, specialising in long-range support by exploiting positional advantages earlier than other vehicles. The firepower of the G6 is exceptional, with one of the most potent high explosive rounds in the game, capable of taking out almost any target in just a single hit. Despite having a high top speed, it performs quite poorly in the mobility department. It has low off-road speeds, extremely poor acceleration, and - like all wheeled vehicles - has a large turning circle which is further exacerbated by the extreme size of the vehicle. This size makes it vulnerable to spotting and identification, so stealth is generally hard to pull off in this SPG. Compounding this issue, it has poor armour, just barely protecting it against high calibre machine guns at 200 m range. Autocannons, and artillery are consequentially extremely dangerous for this vehicle.