Hey guys, I finally got it working. I will post the start to finish down here:
1.Create a new usb via Windows using the Creation tool (I used the stable version in combination with a USB 3.0 Flash drive)
2.Went to Linux (ubuntu in my case) installed the newest version of syslinux on ubuntu (sudo apt install syslinux)
3.Used Make_bootable_linux (might not be needed) (command: Sudo bash make_bootable_linux) Remember to put this in a different folder NOT the USB drive
3.In the BIOS of my Dell R510 i switched the BIOS to BIOS mode, NOT UEFI.
4.Reboot to have this go into