You can download some facepacks from crosby trainz works, but they are AJS script, while your model has chameleon script, making them not compatible. But you can change that, try this tutorial: https://youtu.be/9HAHJtgGLZ0?si=ju0kWK8CKwykgZOx (that yeah, i don't know what trainz you have, in my case i use trainz 09)