March 24th, 2015, 12:24
Yes, this is how I do, I don't think there is any other option. Copy the airfield coordinates from the global_layer.csv file and copy them into the mission file.
Don't change anything to the existing spawns, ther may be some wrong effect in several missions. If you want to use an existing spawn script, creat a new file, copy-paste the script into it and then, you can modify it as you wish wtihout effect on any existing mission.