The tutorial_bf2layers.zip file you have requested: Tools / Utilities / Tutorial: BF2 Layers - 29.86mb is not available. Perhaps try browsing all files for the game Battlefield 2 and upload any files you want to share or are missing. This is the only information we could locate:
The folks over at Prolific Games, makers of the Shattered Faith mod, gave us this tutorial on how to make layered textures in the BF2 Editor. Good for anyone who wants to mod or even just map with custom models.