really gog the game is in a miserable state rn, enemies shooting through walls, stuck in objectives it's a complete gamble wether or not i will be able to play the game properly please fix

The first Far Cry? There is indeed a bug in the last version of it where the enemies can see through walls. Either you go back to 1.32 or install a fan patch or a mod to make it playable. I know I uploaded the 1.41 patch here somewhere.... Ah, it is in this thread that has other useful information as well: https://www.gog.com/forum/far_cry_series/which_version_of_far_cry_is_this

Up to you whether you got for the big FCAM or the tiny patch but I recommend you use one of them OR the official version 1.32 that does not have that annoying see-through-walls bug.