A fantastic tool for creating and running mods. it's an extremely useful tool for all mappers and modders for Goldsrc and Source that puts an emphasis on making several tasks easier and streamlined so that you spend less time with trial and error and more time finishing the project of your dreams.
Chapters for single-player games can be created with XBLAH's Modding Tool through an UI. The modder can easily create new chapters, select the chapter images, chapter background images, the first map of the chapter, the background map, and the tool will do the dirty work of creating the required vtfs, vmts and scripts. It gives the option to automatically blur the background images, so the modder can just take a screenshot of the background map and the tool will apply the usual blur. This replaces the need of saving VTFs, creating chapter images with weird proportions, and so on.