Alci's IMG Tool instructions
You'd need to open the Alci's IMG Tool, select open, and then find the correct image file.
In order to properly begin modding your game, we need to first open the IMG Tool. Find the proper IMG and open it. At which point we need to make sure you are making entries with the proper name and format. Please review above using the resources for correct names. This method applies for weapons, skins, vehicles, and other models. At this time modding direct textures or retexturing them isn't optional as the image files are encrypted.
Proper IMG Directory:
Once you have finished adding your modifications, rebuild, and then save the image file. Afterwards, go ahead and log onto a server. Test out those new modifications of yours and bask in glory of having your modifications back. This is a to be continued guide and will be revised numerous times.