Go to scripts/QuickBattle/ and firstly, copy QuickBattle.py and paste it in the same directory, when asked to overwrite, select rename (or if it defaults to paste it as QuickBattle (1).py, then leave it as it is) and make it QuickBattle (OLD) or something like that, atleast, something different.
This is your back up, in case something goes wrong, you can put this file back over QuickBattle.py via renaming.
Now, open QuickBattle.py and search for:
pAlertEvent.SetEventType(App.ET_SET_ALERT_LEVEL)
Now, on the line below, change RED_ALERT to GREEN_ALERT save, and try it.
If you get a BSOD, attach the file and I'll take a look.