A beginner friendly guide to setting up the VR Mocap github repo in Unreal Engine 5. This guide can also be used for Unreal Engine 4.26 as the processes are extremely similar.

https://github.com/Megasteakman/VRMocap

▬ Contents of this video ▬▬▬▬▬▬▬▬▬▬

0:00​ - Intro
0:40​ - Creating a Project and Installing Plugins
3:40 - Brief Overview of the Components
6:11​ - Creating An Actor - Character Creator 3
11:05​ - Creating Inputs
14:52 - Live Link XR Tracker Explanation
16:58​ - Suiting Up And Adding Tracker Device IDs To the Player Pawn
20:33​ - System Operating In Play Mode with Index Controllers
26:30 - Creating An Actor - Metahuman Head CC3 Body
30:16 - Demonstration With Recording
32:02 - Creating An Actor - Metahuman
34:17​ - Tracked Spectator Camera
37:51 - Wrapping Up

If you are having problems attaching too many vive trackers to a computer, you may need an additional USB PCI card for your computer. I've had luck with the Startech PEXUSB3S44V 4 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter.