The bandit_characters_no_attack_fix_duty_ug_soldier_fix.zip file you have requested: Clear Sky / Mods / Singleplayer / Bandit Characters fix update/Duty UG soldier fix - 9.21kb is not available. Perhaps try browsing all files for the game S.T.A.L.K.E.R.: Clear Sky and upload any files you want to share or are missing. This is the only information we could locate:
This update adds additional notes about yoga and the stalker faction war plus and making the duty soldier at the underground invulnerable during the snork attack so you can get the shotgun, complete the dialogue, get the stash and do any additional quests that he offers. Once the snork attack is over he is normal again and can be killed.