In terms of gameplay mechanics, old school zoom aiming achieves the same thing as ADS. Is getting to press your nose against virtual firearms really that important in a game about shooting werevolves and vampires?
I blame this on the proliferation of Call of Duty over traditional scifi and fantasy shooter franchises. You can fucking ADS on an assault rifle in Halo now 
Give Splitgate a try. I believe it's free on Steam. Old school Halo style run and shoot gameplay + zany portal antics like shooting a portal behind someone across the map then jumping out of nowhere to bean them with a bat.
Solid halo shooter + a really fun portal mechanic that gives you a lot of tranversal power and lets you do all kinds of very silly things like shoot someone behind you from behind them, or juke around someone's missile and cause it to go through a portal and hit them in the back.