Hey Plow, thanks for your help. I have figured out the conflict.
Through trial and error, I have Matched the two "-Xmx" digits and placed their values at 3072M.
With that I was able to menu the game using his modpack, and then ultimately connect to his server.
What I did was went to Microsoft Button>Right Click "Computer"> Properties> Advanced System Settings> Environmental Variables> System Variable "New"> Inputted "_JAVA_OPTION" and for Value " -Xmx3072M".
Thanks again, I hope this helps someone in the future.
