So I actually did figure it out it literally was just me missing the Windows 10 SDK.
BUT I have a new problem I actually got into the gameassembly.dll with IDA and I decompiled exactly where that TUT lead me. Problem is the codes are not working I am completely stumped now. To prove it here are my screenshots.
I also verified I do have the right version of unity that the game I am wanting to get into is using. 2019.17.2. It looks identical to the tuts description for where the addresses are for the codes.
https://ibb.co/RcVNXqp Codegen
https://ibb.co/RQWtDQg Meta
https://ibb.co/80VDkZh Decompile
Just to be completely thorough I want to make sure I am doing il2cppdumper run process correctly also. I run il2cpp.exe the first file I select when program opens is il2cpp.exe then I choose the metadata of the game I am trying to dump and I am using the codes I found above from my empty projects.
https://ibb.co/CKZ0Z4j Dumper log also