Tried out the Closed Beta and Open Beta (btw they extended the open beta till today so play while you can).
My processor is FX4300 (top kek), my GPU is GTX680 and 8gb RAM. I managed to hit 40-60 !!
I am stoked that my desktop able to play, as many said to me that if mine can play the new Wolfenstein, Doom is not a problem. And my monitor is also the main factor for such a smooth frame rate ( normal standard 1920x1080, no 4k, 144hz and stuff)
As for the MP, overall it is fun, but your day will get ruined if there's alot of pro arena shooters stack together, even with the reshuffling at every end of a match, it is not effective enough.

The announcer sounds robotic and bored ala Jarvis in Ironman movie, hope in the future they added in other announcers, just like what Titanfall did.
Weapon wise, they need some time to get used to, as I just discovered in open beta they have alternate fire like all the weapons in Unreal Tournament.
I would like to comment that Rocket Launcher and Super Shotgun lack the blowback after being blasted or shot at. I always shrug off the rocket blast just to get closer to the other fraggers to my super shotty. Heavy machine gun will hopefully get a slight buff, as I don't feel the omph.
Hack module is a hit and miss, as I mostly trying to regroup with others everytime i respawn.
Overall the MP is fun, I find the review at steam s very harsh and borderline nonsense, some just barely even logged into the game and they already made up their mind.
Nevertheless, Doom for me is always a campaign experience, looking forward to how they do the campaign.
Oh I have prepurchase it, I hope to give a written review when it comes out.