Not entirely, but close. As the ETO ones build on the MAW ones, you can go from there, but be careful with anything that needs to be a different colour, such as vehicle duct plumes or ground explosions. It's a long process... Using WinMerge to merge the effects.xml files is a good move, but it doesn't cover everything either! Whatever else you do, make sure you have secure backups outside your installs! I can't stress the importance etc, etc...