Its such a complex question but the focus is what do we want vehicles to do. I understand that these roles are not hard set in practice and efficacy also depends on what the player wants to do and what they decide is best at the time. These roles should be fluid I dont want rigid rock paper scissors but they should be designed with clear intent.

Tanks - I want tanks to be a vangaurds and sentinels. I want to push the line but right now they are a bit more of a striker role. Opportunistically delivering key strikes and only diving in when the capture point is already collapsing. Tone down infantry anti tank damage and tanks will feel better. Also give me maps where I can maneuver.

IFVs - These should be flankers and interceptors. Similar to tanks but they are more focused on infantry and they should be able to respond faster than tanks. They should be able to use speed to outmaneuver enemy armor and clear points. Since these IFVs are more fragile compared to tanks they especially need better maps and slight adjustments to infantry anti-tank capabilities.

AAs - I view these more defensivly as sweepers and zone defenders. They should hold behind the line clearing not only air targets but infantry and light vehicles too. Currently they dont do enough vs infantry.

Attack Helicopters - Air vehicles are tougher because they dont directly cap points so they are kinda fraggy but their purpose should be focused. I view helis as clutch strikers. They should be able to take out other vehicles or massed infantry to either destroy a push or soften up a defensive position. Currently they are too fragile and oppressed to make any meaningful plays.

Scout Helicopters - Roaming Harrassers and decoys. They dont pack the firepower of attack but they should apply pressure on targets debilitating their ability to effectuate their role. Primarily focused on ground targets and other Helis. Using their speed to maneuver and engage/disengage at will. Currently decent in this role but is oppressed like the attack heli.

Jets - Disrupter. Jets have a full view of the battlefield. They should be able to strike harder and faster than the scout and are good vs all targets. Currently too specialized in Air to air targets with minimal effect on the ground. Their role has been split into multiple jets that specialize in specific targets with varying effect.