I'm not familiar with any of the software you are using, but this should fix your problem:
When you encase the executable in quotes when using the start command, then you need an empty set of quotes between the start command and the executable. Try this:
start "" "C:\Users\ARCADE\Desktop\operation ghost\Game Loader All RH.exe"
Start is used when you need the batch file to immediately continue execution of the batch file, even if the program which was "start"ed keeps running. In lilshawn's example, Notepad will not launch until you exit out of mspaint, and then the calculator will not launch until you exit out of Notepad. If you put a "start" in front of the first two, then all three programs will open immediately. Note that if this is the reason you are using start (I'm sure it has other features, but the return-to-executing-the-batch-file feature is probably why you were told to use it), then the only thing you gain by using "start" in the last line of a batch file is the removal of a DOS window while the program which was started is running.