A lot of things can be simulated in FPSC and ragdoll physics type entities beahviour - simultaed being the optimum word as thats the best you would ever achieve with the FPSC engine in it current status - would require a brave person to attempt such a thing as achieving anything worthwhile in that respect would certainly require an enourmous amount of effort or resources of one kind or another to be called upon and the returns are very unlikely to highly professional enough visually.
Thas my opinion anyway - I just dont see the engine having enough capability to take the any such effect far enough in its current status.
The difficulties of achieveing realistic professional looking ragdoll effects in FPSC are great indeed.
Yet again of course some level of the reaching the effect visually as with many things is not perhaps impossible.
High end engines or games made with them often also call upon other engine features which FPSC does not have to effectively enhance such effects which makes them look even better.