I think that weapon challenges and achievement badges should be brought back, both of those were very fun.
You already put a bunch of achievements for headshots and avenger medals and whatnot in the game, now you just need to make them into badges that we can put on our player cards, to flex on people.
The weapon challenges are fun to work towards, and if you put some skins as rewards that's even better. By the way, if you do add weapon challenges, and you add a golden skin as the final reward (like in Splitgate 1) then the gold skin should be unlocked as a color variation for every skin for that gun, so that you can have a skin that changes the physical form of the gun, but still have your awesome golden look on it.