This self-propelled anti-aircraft gun can shoot down 90% of aircraft. Simple to use, just use the TRIM&VTOL button to aim at the aircraft but not completely manually, as soon as it starts it will aim at the target but there may be a slight deviation and you need to use VTOL and Trim to adjust... not so much. You just need to press A1 to start the artillery system.
At the pilot's position camera perspective, there are function buttons:
% target change,
•> next target,
C(A1) starts the cannon and aiming system.
A6 Open and close the cabin door
A7 open the gun barrel cover
Last sentence: have a good time shooting planes in a plane building game 🥲, I'm from Vietnam <3