FA2 doesnt support that script action.
Go to Edit ---> INI Editing, look for the ID of the script (i.,e, 01000115) and click on the number of action you want to modify (remember, 0 is action 1, 1 is action 2, etc). Change its value to 60,0.
Be sure not to use the Scripts menu on that script, or when saved, itll change back again to attack waypoint. FA2 does not support script actions 59-64 so it can still support RA2 maps.