i find boring to use support specialist over and over for solo, i tried kiting for sharpshooter but it didn't work too

this did not happen last time we played (around 5 months ago) tried a lot of fixes but none of them solve the issue.

Specifically, the voice line files. I have KF tool installed, but I dont see an audio extractor mode

So I got some questions about perk leveling. 1. Is there still an active map for it and if so how do you join it? 2. Is it ok to go into public servers with leveled perks? I'm getting back into KF1 after a very long time away, but this perk grind is really, really awful. Especially hyper spesific things, like welding several thousand door HP or killing only stalkers with assault rifles. I mean, I want to enjoy this game and not be grinding for hours on end for what is essentially base kit. Servers so...

Never played this game before and have seen little of it. Should I just jump straight into multiplayer match or play solo until I get an idea for the game?