Q: Bullets don't penetrate NPCs or Ragdolls.
A: This is an intentional decision on my part, and may be reverted in the future depending on feedback. It may be fully optional.

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Q: I was hit by my own bullet.
A: Report on what map this occurred and what object you hit to the "Feedback" post. The entity class was likely not included in the penetration whitelist. This is purely a visual effect, so you don't have to worry you lost any health.

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Q: Bullets that passed at least one wall don't apply force to the objects they hit.
A: By default, all weapons have Force scale set to 0. You may change this at will (refer to the "Customisation" section).

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Q: The mod doesn't appear to load.
A: Firstly, make sure you started a NEW savegame AFTER enabling (updating) this mod in the main menu (loading an existing savegame will not work) and that you started with ADDONS ENABLED in case of the campaign. Then try to disable all other unnecessary mods to avoid any possible conflicts with them. If the bullet penetration still doesn't work after multiple attempts at firing at different props/walls, provide further details in "Feedback - Bug Reporting".

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Q: Bullets don't penetrate when I'm standing very close to a physical object.
A: Due to most physical objects having collisions disabled with the player, but not with other entities in the world, it is possible for player's collision shape to overlap with the one of the prop. In cases like these, penetration is disabled, so as not to hurt the player.

Q: What are the default weapon parameters?
A: You can write the desired command to console without any parameters, which will give you the current value. Otherwise you may view the table with all the values here: https://imgur.com/a/JOKAYCl