Hi, kiantiongson,
Here are possible, probable, feasible, and convenient ideas and resolves that you may opt to try for your issue:
1. Download and install VMware fusion 7 so you can run windows alongside your Mac operating system and run RO through that Windows-based operating system.
VMware Fusion 7:
https://my.vmware.com/web/vmware/info?slug=desktop_end_user_computing/vmware_fusion/7_0
2. Download and install Winebottler so you can run Windows-based programs on Mac.
Winebottler:
http://winebottler.kronenberg.org/
Requirements:
1. Winebottler
2. Blackout RO Client Files
Instructions:
Run Winebottler > Open Blackout RO Client Folder > Right click on Blackout RO Patcher and select open with Wine.
3. Download and install Wineskin
Wineskin:
http://wineskin.urgesoftware.com/tiki-index.php
Requirements:
1. Wineskin
2. Blackout RO Client files
Instructions:
Run Wineskin application(select the latest engine) > Create new blank wrapper(select a title of the wrapper of your choice.[i.e.: Blackoutromac]) > xxxyy.app file wrapper creation complete> Open the directory > right click on xxxyy.app file and show package contents > click wineskin.app and select install software > select copy folder inside and select the folder where all blackout ro files are located and saved > choose the executable file of blackout ro patcher.
Skim over the details, instructions and what they are used for and try, experiment, and test out what works for. Hopefully, this was helpful information for you.