Mixamo walkcycle/animations along spline?

[rip-hair]

Hey all!

For a current project I'm using animations from Mixamo on some characters in my scene.
I watched every available tutorial on C4D and Mixamo but one thing I simply cannot wrap my head around is this:

How can I make a character with a Mixamo walkcycle "applied" follow a custom spline or path?
Imagine a room where the character walks to a certain point, avoiding chairs and tables then comes to a stop pose, and then stands idle, starts talking etc.

I'm quite the C4D character n00b so any help is greatly appreciated!

Cheers!