Ageia, which is responsible for the PhysX technology that drives the underlying physics interaction in Unreal Tournament III ("with additional benefits for PhysX Processor owners", natch), has released two CTF levels for Epic's blaster.
CTF Lighthouse and CTF Tornado have been lumped together in the Extreme Physics Mod Pack, which is available for download here. Both, obviously, are designed to showcase the power and capabilities of the PhysX technology.