This should do it with the below configuration.
Code:
killshotreverse_enable 1 // Enable/Disable the plugin from editing damage values.
killshotreverse_dmgratio 1.0 // The ratio of damage to apply back to the attacker.
killshotreverse_disablealldamage 0 // Disable all damage between all players.
killshotreverse_disablefalldamage 0 // Disables fall damage for players.
killshotreverse_reversealldamage 1 // Reverses all damage to attacking player.
killshotreverse_disableknifedamage 0 // Disabled friendly fire for knife damage.
killshotreverse_rounddisabletimer 0.0 // Disable friendly fire for the first x seconds of each round.
killshotreverse_roundenabletimer 15.0 // Damage is reversed during the first x seconds of each round.
killshotreverse_blockvictimdamage 0 // Victims wont receive damage from friendly fire killshots
killshotreverse_blockkillshotsonly 0 // Allows all friendly fire damage to be reversed
killshotreverse_blockonroundend 1 // Blocks friendly fire damage after a round has ended.
killshotreverse_debugmessages 0 // Prints debug messages to client consoles.
Edit: Let me know how it goes so I can update the main post.
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