pitch/roll for movment.
VTOL to move cannon up and down.
TRIM to move turret left and right.
Throttle to put down supports, raise driver cabin cover and open commanders view port.
AG 1 for NVD and lights.
AG 2,3,4&5 to launch countermeasures or you can fire the 8 rockets in the air to ground menu.
(main armament is the G5 155mm howitzer cannon)

History:
At the time of its introduction, the G6 was considered one of the most mobile self-propelled howitzers in service. Its chassis was engineered to be mine-resistant and blastproof, allowing it to survive multiple TM-46 detonations during trials. The G6 was conceived as a wheeled rather than a tracked vehicle for this purpose, as well as to allow it to deploy long distances by road without consuming excessive quantities of fuel or requiring a tank transporter. G6s entered service during the last two years of the South African Border War, frequently shelling positions held by the People's Armed Forces for the Liberation of Angola (FAPLA) during the Battle of Cuito Cuanavale. Their ability to bombard a target and change positions rapidly in less than two minutes, with minimal preparation, greatly reduced the threat posed by retaliatory Angolan air raids and counter-battery fire. A number of G6s were subsequently manufactured for export and purchased by Abu Dhabi and Oman. Export models included a specialist anti-aircraft variant with a GEC-Marconi Marksman turret and twin-barrelled 35mm autocannon. Chile briefly produced the G6 under licence as the CC-SP-45, although this arrangement was later terminated after the system was not adopted by that country's armed forces. Iraq also manufactured its own domestic variant of the G6. as the Al Majnoon with technical assistance from Canadian artillery engineer Gerald Bull, which later evolved into the much larger and more sophisticated