Right now the meta is just nonsense. The large majority of players have all said the same things about AA, Zepellin, Shotguns, Gas, LMG's, Tail Gunners, Battlepacks, Medals:
AA is too strong for the ease of use and encourages people to camp out on turrets just to take out planes solo. The patch barely changed anything of this except that AA apparently doesn't fire into the headquarters (I was still getting it on Empires Edge operations from one end of the map to another though). On most maps you are still getting pummeled even out of bounds the range is still that high. It's just too easy still, I've sat on them enough post patch to see how it hasn't changed anything and is still working too well. It's not hard at all to obliterate any plane that you see and track them around quickly. If you are to keep the range as it is then; give stationary turrets more durabilty (I can destroy them in 1 bombing atm). Reduce their blast radius and damage as they should be a deterrent and tool for team firing on planes just as a team would take on a tank together. They are so easily available and well placed around the map that they should not be a solo instashredder of planes flying anywhere near the map but should do enough to make pilots think twice and also be worth working with a team mate or 2 to get the planes down through good communication.
That leads to the Zepellin. Reduce the health on the zepellin to match that AA change so AA still poses enough of a threat to the zepellin and also planes can rip it a bit easier too. The zepellin is what is causing the big overcompensations in the game for balancing at the moment and just changing that health on it would bring the planes, AA and Zepellin more in line with each other. It's just not right at the moment still. Also again with the AA turret durability, it is too easy with the zepellin to destroy AA turrets.
Shotguns. These have too much range for the absurdly easy handling and lack of need to aim. Too many times I have been shot by even the most basic of shotguns from ranges far beyond what could reasonably be considered close quarters and the shotguns as they are encourage camping far too much. A lot of people have also said this so many times in youtube vids, on the forums, in game. Its a noob cannon which is probably the biggest cause of rage messaging in this game at the moment. I used a shotgun in 2 games and got 5 messages from different people. People HATE the shotgun meta and so many people have said it needs changing. DICE did nothing!
Gas. 2 grenades is too many, it lasts too long, poisons outside of the green cloud, poisons through walls, disintegrates Sentrys in no time, damages by too much too fast, 25 damage instantly is far too much. Basically there are games where people spend 90% of it tripping out on friendly gas or sitting in a gas mask. It's beyond broken and everybody wanted it changed. DICE did nothing!
LMG's. They are still pretty bad and the one viable weapon which only has 20 in the mag got nerfed with horizontal recoil. Nobody said the BAR was a problem and the increased accuracy while ADS wouldn't have changed enough for it to warrant a nerf as it still wasn't that great a weapon as it was. The support class is just bad. It's no wonder there are so many just assault and recon teams. There are pistols which are more accurate and do more damage than LMG's. Thats how backwards the pistol to primary meta is right now.
Tail Gunners. These are too strong on planes but not good enough against anything else. The chasing plane should be the one at an advantage not the other way around. At the moment the tail gunners are one of the big things which kill dog fights if you can get someone to sit in it, if not you can just fly straight to switch seats and melt anything on your tail. It's too easy. Most of the time though this is the case, especially on console because gunners have literally nothing to do but shoot at planes and so it can get pretty boring in the back seat of a plane which deters a lot of people jumping in. I fly a lot and have a gunner for about 20% of the time. When I do have to do the tail gunner switch because theres a fighter up then there have been times that someone has spawned on me, into the pilot seat and then piled us nose first into the ground.
Battlepacks. These do not come enough and the scraps do not build up quickly enough to buy packs. Also it is almost impossible to get puzzle pieces. Im level 76 and only have 3 pieces!!!!
Medals. These still don't work. Reset all the time and all sorts. The way they work channels people to play in silly ways for too long a time and they are too much of a grind for the xp they offer. You can easily earn more xp by playing the game normally. I've just given up even selecting medals to do now. Pointless things not worth the time or hassle especially when they barely ever work.
It's all very well asking for "5 changes" from people but DICE you fixed very little that anyone actually wanted changing most. It's like you asked but didn't really listen. You made more issues like people now getting stuck in eternal loading trying to quit even from operations and the game is mostly played like the Hulk farted all over your maps because of too much gas. Then theres the team balancing, I don't get how its done but I keep getting in games where my side might have 2 level 70+ players and then the rest are all between 1 and 20 while the other side will have 15-20 level 40+ players and the rest 30+ with maybe a 50+ or 2 mixed in. The team balancing is a mess in terms of determing the level of experience and skill between different parties joining the match.
The thing is, these are just some of MANY issues that make the game unenjoyable. Sometimes the game can be fun but at the moment there is too much getting in the way of that for a lot of people and the players have no idea when you next plan to patch the game to fix these things they actually wanted. It's an issue you have caused which is going to drive a lot of people away from playing.