Gaming

Max Payne 3. The soundtrack is amazing and blended perfectly into the game.

From the top of my head: It might be mainstream, but I liked the gun sounds in battlefield 1 and 5. Also I enjoyed the slow motion gun sounds in Max Payne 2 a lot. Call of duty modern warfare was also great back in the day. Don’t know how the newer installations are holding up.

assetto corsa competizione

or really any quality racing game. its almost like 50% of my enjoyment

Darkwood

@WatTyler
Hellblade: Senua's Sacrifice

Devil Daggers. It's a first person wave based arena shooter with HRTF support. It's insane with a good pair of head phones.

I don't care for the Warhammer universe, or Tactics games all that much. Tactics game Warhammer 40k: Mechanicus held my attention for far longer than it should have thanks to its incredible sound design.

The soundscape and music of Inside is godly. Honestly I think half the game's atmosphere is the audio.

The modern hitman trilogy had some really good sound design from my experience. Definitely recommended with a good pair of headphones. Realistic but also crisp.

It's not gun sounds, but I always thought the entire soundscape in Journey was pretty special.

My favourite gun sounds are the plasma gun from doom 3 and the bolter / heavy bolter sounds in space marine, im really hoping the sequel lives up to the standard set by the first, as the new boltgun game just doesnt quite cut it on that front for me.

Squad! Some of the sounds from bullets rushing over your head as tanks and artillery drone on in the distance really creates a surreal feeling like your actually there.

the spear sounds in Rain World are wonderful

and

the entire ost of Celeste is fire

For overall sound design Prey (2017) really nails it. The stealth mechanics are also included in sound design so when you get spotted or escape there's intense auditory cues that track with the thriller/sci Fi horror vibe of the game.

If you go into it expecting a first person shooter though you'll be disappointed, it's an immersive sim for sure. Shotgun sounds really good though and there's an experimental weapon called the Q beam which has a phaser sort of sound as it fires. Also really cool.

Also, Elite Dangerous has incredible sound as well. Guns sound alright but you won't be firing them on foot as much as in space most likely.

Maybe not the answer you're looking for, but the sounds in Vampire Survivors are like straight dopamine injections especially when you start ramping up towards the end of a run.

For a unique take... The music and background sounds in Kenshi. Music is so sparse that when it does kick in, and how it kicks in, is just really unlike any other game.