Two things I would like to see implemented.
So first thing is a better way to handle surfaces and interacting with them. I love the way 2042 handled Bipods. I think that is one of the only things that game did correctly. The Bipod should interact with every surface. Often times it is adjustable to height and position too. Example if there is a decline or a weird slop on the left and right you should be able to still interact using your Bipod. It should just be deployable as like an under barrel attachment that will automatically snap into place or something like 2042 did. Also, when using the wall or a ledge or if implemented a berm you should be able to keep your weapon upright or correctly set. When I use the wall to my right or left to help get my weapon set against it I should not tilt my weapon at all. I would also suggest something that can allow you to tilt your weapon if need be. But even once again you should be able to lay your weapon on any surface in a vertical alignment to steady it within reason as long as it is not in decline compared to your weapon or something along those lines.
The next thing is improvements to vehicles. I think vehicles should have limited ammo and would need to travel to vehicle repair sites to get ammo back as well as repair their vehicle if damaged. These Sites might be located back at base or on other sections of the map. Also their should have limited defense uses as well. Those get repaired also. Other things are that because you might implement that maybe a tank is a little harder to kill because it needs to be. If it runs out of ammo then it will have to get off of the battlefield and rearm. it gives them a vulnerability but they should be harder to kill to make it fair. If I am looking at ground vehicles I would look at an M1A2 Abrams. It can carry 42 main cannon rounds. The 7.62 coaxial machine gun has 1200 rounds or something like that. Also the top .50 Cal machinegun has roughly the same. They both use 200 round magazines. If they are hot they will need to cool off but also if they run out of ammo they will need to be changed. Just thoughts, and feedback. I think that would be interesting additions and make vehicle play better. Helicopters would have to land back at base and rearm, Same thing with Jets. That means they would not need to just launch them but also land them. Thought it would be interesting concepts.