After years of admiring everyone work, I have set out on the journey to learn how to create Arma 2 terrain. I have successfully completed several tutorials and use them as my bibles. I am currently building myself a custom map based on Bushluker’s source file for Limnos. I have been successful in getting it into the game, and recently with the help of this forum resolved the map grid system. Currently I am try to perfect or update the Sat_Ico.png, by removing the Google map information that came over during the Sat_Ico.png creation. I’m using Adobe Photoshop CS 6, and have a question for those that are familiar with the program. I would like to know the difference between "Flatten Image", "Merge Visible, and "Merge Layers"? Specifically, which one does not increase file size or increases it in the least?