UnboundGodz

If your still looking for help on this, hopefully this may help.
You will need:
Your Cracked Binary: ????????? (You will want to thin it so your only dealing with ARMv7, you can upload it, then re-download it here: http://armconverter.com/binarytools/index.php and it will be about half the size) Also, You Will Want Your "global-metadata.dat" From The IPA Your Wanting To Crack/Mod/Hack, This Will Come In Handy With IL2CPP+IDA Pro [Download] IL2CPP Latest Releases: https://github.com/Perfare/Il2CppDumper/releases [Download] IDA Pro 7: https://down.52pojie.cn/Tools/Disassemblers/IDA_Pro_v7.0_and_Hex-Rays_Decompiler_(ARMx64,ARM,x64,x86).zip Once you have all that you will need to do this, you can simply begin the process by using "IL2CPP Dumper v3.2.0" so run "Il2CppDumper.exe".
You will then need to select your cracked/thinned binary, followed by your global-metadata.dat.
Then you will be prompted with "Select Platform: 1.32bit 2.64bit" depending on iOS/iDevice and if its a current/updated IPA then it would be 64-bit.
Then you will be prompted with "Select Mode: 1.Manual 2.Auto 3.Auto(Advanced) 4.Auto(Plus)", i would do #4 to get the most out of it.
It will do its thing, then you will have 2 new files in the directory of the Il2CppDumper.exe program, one being "dump.cs" which you will want to inspect and the other being "script.py" which you can use in IDA Pro, along with that there should be a generated folder called "DummyDll" with a bunch of .dll files, this will have the "Assembly-CSharp.dll" you will want to inspect aswell.
 
Hopefully this helps if your still in need of assistance.
I'm new to this myself so i hope it made sense and helped, best of luck!