The Far Cry games pretty much always allow a sniper and/or stealth option. Some of the scripted mission sequences can be fast paced, but it's largely open world. If you're not familiar with them, stick to the games with numbers in the titles for starters. Probably not 6. Maybe not 2 this day and age. 3-6 all exist with a particular style in mind.

Unless you're anti ubisoft

if you wouldn't mind 3rd person stuff then I would recommend "conflict: " game series

Virtua cop

You have to reload "manually" 😁

If you can mind the obnoxious patriotic undertones, Hell Divers is actually my go to game rn. Partly hate it for the mentioned but overall, pretty decent game. I'm not a hard core gamer really (in general) but the game has grown on me and it's PvE so it's fun being able to play with others instead of being toxic.

Insurgency Sandstorm

I can highly recommend War Of Rights. Multiplayer only American civil war fps.

You form a long line in a field with 20 odd men facing the enemy line. It takes around 25 seconds to reload your gun, while the enemy is firing at you.

"Gentlemen, take aim, steady, steadyyy, steadyyyyyy, FIRE!"

The whole team gets penalised if you die out of line or duck for cover.

Portal?

RoboCop Rogue City maybe? I've only played like 30 min, but you are RoboCop so you move pretty slow and deliberately.

Rainbow Six: Siege

People who play it like COD are the worst players in the game. Everything is designed to reward methodical, team-focused strategy so you can get the upper hand on people who don’t pay attention and try to rush everything.

Sniper Ghost Warrior 2.

Generation Zero. Player power builds slowly, especially in single player.

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