Note: Make a back-up first. Navigate to C:Usersoffic_000DocumentsMy GamesOutlastOLGameConfig and you will see a file named OLEnemy. Open it and then make some changes. As you scroll down, you'll find things under titles such as [OLGame.OLEnemyPawn] and [OLGame.OLEnemyGenericPatient_G]. These are enemy titles that contain codes such as NrmAttackNormalDamage=51, NrmAttackThrowDamage=51, HardAttackNormalDamage=101, HardAttackThrowDamage=101, and so forth. You want to change those values from their current numbers to 0. There are quite a few to change, so the process could take quite some time. Make sure that you only change digits that relate to the values specified above. The end result once you change all appropriate entries is that no enemies will be able to inflict any damage.