[SOLVED] Unibeast couldn't copy base system

I have tried everything and I am about to lose my ****, every time I try to install El Capitan onto my USB it fails and I cannot figure it out. Here is my system I am running every thing on. 2015 Macbook Pro, shipped and running El Capitan, Native install, 100% up to date.

Steps I have tried

• Download El Capitan from App store
• Format and partition 8gb (7.53gb actual) USB stick to GUID Partition Map and HFS+, I even named the drive USB like the tutorial suggests
• Failed with...

[SOLVED] Unibeast couldn't copy base system