Stiler said:
It'd be nice (in the future) to see them ditch karma and go with either Havok or Aegia.
Karama seems like it can't do as much or such to me (granted i'm not in the know about all of it's features).
Though of course, going with either will probally mean more $$$ they might not have to spend on it or something.
It's not easy, you will need an engine programmer which knows Unreal Engine 2.5 inside-out.
Next to that, you also need to know how to implement middleware such as NovodeX, Tokamak, Open Dynamics Engine, etc.
Havok isn't an option because a commercial license for a commercial game is too expensive, even more as Tripwire has won I believe...
I would choose for either NovodeX or Open Dynamics.
If those aren't reasonable options because it's too hard to understand, than Tokamak could be a good option.
NovodeX would be the ultimate, as it can do things like Real-Time Dynamic Full-Scene Destruction, Metal Bending, Fluid simulation, Particle physics, etc.
And as an addition to that, it could draw its power from the Ageia PhysX processor.
You'll need that programmer though.