A small cheat mod that allows you to upgrade all the costumes and weapons completely.
S.T.A.L.K.E.R .: Clear Sky Cheat-Mode (Upgrade for all branches / OGSM CS 1.8 CE Fixes)
You need to copy the files from the archive and move along the path (S.T.A.L.K.E.R. – Clear Sky \ gamedata \ configs) and replace well, that’s all.
It is advisable to start a new game, if you want to continue the game, you may get an error with the name “stack trace:” it is already necessary to start a new game.