Changing Physics

[gnomepickle]

I am currently modding Soldier of Fortune 2: Double Helix and I have a question about the game physics.

I was wondering if and how I could add the ever popular "ragdoll physics" to the game. Not only for the enemy characters, but to objects such as boxes or weapons as well.

Also, after you kill an enemy, their arms swing out to the sides and it really looks bad. (ie. arms disapearing into walls and such) I was wondering how I would fix that.
I'll post a screenshot if I get a good one.

Thanks for your help and I hope I posted this topic in the right place!