Greskrendtregk

Simple mod that allows you to change both the player and ai
Weapon Modifier Melee Modifer Player Health Regen
independently, and easily toggle it on and off with a simple hotkey. 
Makes the guns feel more powerful and makes shootouts more fun and challenging. If you have a hard mission or want to go back to default, just hit the hotkey and its back to vanilla. 

Mod is open source as well.
github

Requires
Community ScriptHookRDR2.NET

Default Key: F10
Will display the status and the current values on toggle. 
Change values in the ini then toggle it on and off to update the values. 

Place the 
DifficultyScaler.dll
DifficultyScaler.ini

Rockstar Games Version:
In the scripts folder (Program Files\Rockstar Games\Red Dead Redemption 2\scripts) 

Steam Version
In the scripts folder in the same directory as "RDR2.exe".

If you do not have any scripts already you will need to create a folder named "scripts" (lowercase)
 
Video Example of me getting shot like a dog