We really need to address the issues the multiplayer side currently has.

So, first things first:

1. Multiplayer penalties for leaving before or during a match

Infinity handled this quite well by increasing your queue time as a penalty if you decided to leave a match. Your loot and points would also be reduced.

We really need a system like this back. There needs to be an actual consequence for repeatedly leaving matches.

2. The infamous ST-310001

This really needs to die — and soon.

Please fix the server/time-out issues surrounding ST-310001. It has been around for far too long and can seriously ruin the experience.

3. Being locked out of the game while waiting in queue

Please don't lock the entire game while we're sitting in queue.
You can't upgrade in the hangar, you can't check your balance, and you can't even properly access the Discussions tab because pressing Shift + Tab causes the queue timer to pause. basicly you can only stand there in the player area and do nothing.
Please stop soft-locking all these functions while we're waiting for a match. Let us use the rest of the game while we're in queue.

4. Matchmaking

Matchmaking should probably be a thing again — or at least something similar to what Infinity had.

In Infinity, you could choose aircraft within roughly 1,500 points above or below your current aircraft. This meant that fully upgraded, highly skilled players could find matches suited to their level, while newer players still had a reasonable chance to compete.
I know I'm already in the higher-ranking part of the player base, so sometimes it honestly feels a little unfair for the newer players who get matched with us.
I'd much rather see a system that gives everyone a fairer chance to play against opponents around their own level.

5. - Not a must at all but a personal preference
Why are so many planes missing skins / drops from the Acess pass and Aces pass / premium?
I use the F-16 9/10 for all rounds. But no skins for it how so ever???
The pink and black one is really boring... bring some skins to the planes not part of all the drops...

These things would go a long way toward making the multiplayer experience much more enjoyable and, more importantly, much fairer for everyone.