So there's this similar new addon called Realism Ragdoll that used to replace not just the vanilla ragdoll physics, but also overwrite those of custom playermodel ragdolls, much like WreakHavok does. However, it also suffered from the exact same issue that still plagues WreakHavok; if you shoot a ragdoll while an impact particle replacer is enabled at the same time, the game will randomly suffer a stroke and crash.

PhilModder, the creator of Realism Ragdollm addressed this issue in a recent update, determining its custom playermodel support to be the actual cause of the issue and thus removing it. Sure enough, I tried to replicate the problem using the aforementioned method mentioned above (unloading bullets on ragdolls with impact particle replacer on), and no crashes so far.

Now, if the author of WreakHavok is still active and all, is there any chance they can follow PhilModder's example and post a version of this addon without custom playermodel support, so we can play with realistic ragdoll physics AND still have our cooler custom impact particles without crashes?