You'll have to dump the files from the disc. This can be done by using multiMAN on a jailbroken PS3. For more information on how to do this, check out this page.
You can use a program like PS3 ISO TOOLS to extract the contents of the file. Try looking online for more tutorials. Note that you don't have to reassemble the .iso file, all you need is to extract the game folder.
You can use move the files onto a USB stick in multiMAN (easier), or directly copy them over to your computer via FTP (faster if using a wired connection).
Make sure all the files and folders have the correct names, and that everything is in the correct place. If the batch script throws an error, it usually prints an error message explaining what went wrong.
The batch scripts can take a while to patch the game files, especially if your computer or hard disk is slow. If the script has been stuck for a long time, you can try running the script in verbose mode.
In File Explorer, navigate to the folder OFA_eng.
Click on the address bar and enter cmd. A command prompt should appear.
Type in patch_main_disc.bat /V (or the name of whichever batch file you're trying to run). This will run the script in verbose mode, which will display a lot more information about what the script is doing.
Check that the patched files are in the same place and have the same name as what the original file was.
You also need the license files in order to use the DLC ingame. These have filenames of the form Ixxxxx0000000000.EDAT and should be in the folder dev_hdd0/game/BLJS10260/USRDIR. If you don't have these files as well, you won't be able to use the DLC.
Check if you have the 1.07 game update installed - if you do, it will need to be English patched.
Make sure you have patched disc.arc and disc.bin.
Make sure you've patched the _patch.arc.edat and _patch.bin.edat files. Also make sure you've copied them over to the right folder.
Check if you have any game updates or DLC installed, and make sure they are all patched.
Also make sure you've downloaded the latest versions of the batch scripts.