Characters will stiffen and try to right themselves, flop and fall hard when shot in the head, and generally move in ways that more accurately reflect their skeletal and muscular structure and the laws of physics.Works on all humanoid creatures, including mutants, ghouls, and ghost people. To make sure the mod works as intended, use it below compatibility skeleton, since it's supposed to affect human ragdolls and if you set NVCS below it, then this mod's ragdolls will simply not work, this mod does same things as NVCS.
                                                             
 
                                                                                                         Video demonstrating them in action:

                                                                 

                                                                          Direct Comparison between original Ragdolls mod vs Reactive Ragolls

                                                                 

To achieve this result, I decided to take as reference Ragdolls from Half Life since they behave pretty realistically but they do not use any procedual animations, so I figured it'd be a good fit for new vegas, which has no death animations and a big variety of weapons to use.
I hope I achieved a good result.
Naturally, this mod is complementary to Madace's wonderful Ragdolls mod, it wouldn't work as it does without his.
This also means that his mod is a requirement, as I have configured it around it, and it has many extremely valuable additions like locational damage instead of kill impulse.
Other than that, this mod also includes adjusted skeletons for super mutants, ghouls, and ghost people, since they're all humanoids as well.


with 1.5 release, this mod now covers creatures from TTW as well, and it comes with new optional features.

First one is experimental constraints, which changes physical properties for various armors listed.
It has a couple of limitations and quirks.
Firstly, the way it works is that is uses an unused feature leftover from FO3, but it has limits in that it needs to update the 3d model of the person wearing the armor, so it has 2 separate scripts for that(called update3d).
what it means in practice, is that if you wear or remove armor affected by the script, you'll need to refresh your pip boy by pressting tab to exit it to make it work properly.
Same goes towards any weapon you're holding, it'll turn invisible and you'll need to unequip it.

For NPCs, this also causes them to blink even if they're dead.
I made this feature optional since it has its own quirks in application so if you don't want to deal with it, or delete updat3d scripts, you can simply choose to not install it.

Second optional feature is modified projectile push values.
Game's vanilla values made little sense, 10mm and 9mm had force of 5, 5.56 had force of 2, while .22 had force of 9, so  i changed them and made them into a script, that end user can modify for themselves as well.

As an addendum, it's done on top of compatibility skeleton, which means it also adopts features of that mod.

TTW version that covers some omissions will likely come later.
Credits:
MadAce: original Ragdolls mod.
Fallout2AM : Compatibility features.
Psychor: advice and elaboration.
Sweet6shooter: help with scripting.
Captain Kolza : Header image.