Following the M1 Garand, I decided to pick a relatively simple subject and tried to go through the whole workflow of modelling, UV, normal mapping and texturing quickly. This project took about two and half weeks.
Went back to Pluralsight to re-learn how to work with Quixel DDO.
I realised I didn't really master the technique of map baking (normal/ AO maps) and NDO earlier. So I spent some time going through the tutorials in Pluralsight before I worked on the Garand again. Next tutorial is DDO on texturing the model.