I am getting hard filtred by Delta extreme, like most of the difficulty comes from the shitty controls like:
>large deadzones
>fucked up wall leaning
>Can't cqc from a wall
>Enemies seem to randomly spot and get alerted to you
>Enemies walk super slowly

I like the slower pace compared to MGSV, but the difficulty seems straight up artificial and bullshit sometimes, it's like the Devs balanced the whole game around tranq headshotting your way around.