what file(s?) contain ALL the vanilla combat AI information/scripts?

[DameOliveCardpalm]

My skyrim has been crashing when combat initiates, I confirmed this by toggling tcai and was crash free until i turned it back on in a combat scenario or came into one after turning it back on, immediately crashing in the exact moment whatever script was executed to initiate the combat, no delay between the enemy drawing a weapon and CTD. I tried reinstalling skyrim but that did not help a damn thing. Maybe the file(s?) containing the combat ai has been modified by a mod and so steam did not remove it from the vanilla install. My plan is to find them and delete them manually and verify the files to confirm that this is not the right route to go to solve my issue.

[IsharaMeradin]

You may wish to go through this to fully revert to a stock setup: https://stepmodifications.org/wiki/Guide:Make_Skyrim_Vanilla_Again

[DameOliveCardpalm]

You may wish to go through this to fully revert to a stock setup: https://stepmodifications.org/wiki/Guide:Make_Skyrim_Vanilla_Again

Thanks, fixed it but as soon as i reinstalled all the mods i had saved in vortex, the issue persisted, must be a particular mod breaking it, but whats strange is that i reverted my mods to their state of my previous session before i installed the handful of mods, of which after i installed those my game was crashing initiating combat. But the game would still crash, i have a suspicion it is the cover self - LOS mod, i saw a message saying 'LOS initializing...' where the other mod pop up messages come up, but i dont remember seeing it previous to the cover self los mod, its queer that it is still showing up so i believe that it broke my game, but now im unsure because even with the clean directory i installed my mods into, it said the same message, and like mentioned, its crashing again, guess i just have to do process of elimination until i find out which mod is causing it