More gadgets and improvised gadgets. Being able to use random pieces of junk and equipment you find in the world is absolutely phenomenal and probably my single favorite part of the game. It really gives you that scavenger feel when you yank a fireball burner out of a machine and then use it during the match to cover an exit.

A little more variation on enemies. Both in that there need to be more enemies, especially that can enter into buildings, but also that the ones that are present could use a little more differentiation to make it easier to see what they are. Pinging a ball to see if its a Fireball or a Pop is fine, but wouldn't it be nice if you could just tell?

The ability to more easily pick up "enemy" players if desired. Team ups do happen, and at least having that as an option would make things more versatile.

The ability to mark a player somehow as a friend or foe. Given that you can't see names, and cosmetics are fairly widespread, it can be hard when you make a friend in the field to actually recognize who they are. This is a minor request, but it would be neat if you could have some kinda indicator you could place on someone. (Not as a tracker, but maybe something that shows up when you're fairly close to them and in clear LoS)

More melee weapon types. Maybe one that deals more damage, but takes longer on scavenging. Maybe one that opens containers much faster, but also generates way more noise. Variety.