If everything is done right, your own creation should appear in its place. Start TF2 and start inspecting a replaced War Paint in the inventory. Once there enter ''/materials/patterns'' to browse all War Paint files and find the names of textures you want to replace. Open GCFScape, click “File”, then “Open” and select tf_textures_dir.vpk, which is located in tf folder inside local files. You can browse TF2's files and get necessary paths for War Paints using GCFScape. If a texture that's being replaced has a different path (for example Bovine Blazemaker's main texture's path is /materials/patterns/2fort/cow.vtf) you'll have to create extra folders to keep the paths identical. This is where all of your custom textures will go. Inside that folder, create another folder named materials, and inside that folder another folder inside named patterns. Enter TF2's local files (right-click on TF2 in Steam library, hover over “manage” and click “browse local files”), go to tf/custom and create a new folder (folder's name can be anything you want).