Project 4D’s Ali has a look at one of his latest projects in which he created a detailed fluid simulation using X-Particles in C4D. More recent iterations of X-Particles including fluid simulation tools as well as a particle skinner modifier.
This will allow you to effectively “skin” or mesh out objects created from particle points. This can be a great way to create and render fluids rather than leaving C4D for another application. Check out the tutorial for Creating a Silky Smooth Fluid Simulation in Cinema 4D using X-Particles here.