Yeah, the hit detection is pathetic. You just need to factor in using ONE ENTIRE CLIP per person during a fire fight, or unless you get lucky with a headshot. It's spray and pray boyz!
Uhhh no. Burst firing will up your kill count ridiculously, spray and pray will get you torn up. The hit detection needs work for sure but I have no problems using smart burst fire to take people down. People who use spray and pray usually end up reloading while I still have more than a half a clip to kill them with if they aren't dead already.
In terms of bullet damage it requires more than a Call of Duty game though there is a hardcore server mode for those that want a more realistic experience with that. In your case it sounds like you're more suited to a hardcore server where it's mostly 1-3 hit kills.
Playing: Subnautica Below Zero, Mass Effect Legendary, Resident Evil The Village
Watching: The Banishing, Bad Banks, Ted Lasso