The main issue that you will encounter I would say would be sizing, its best to figure out that since its the biggest problem that made my build take longer was sizing. Ill start a build thread documenting my build process of my commando armor but to summarize the main issue if your around 5'11 in height size up the body armor except helmet and chest 10% since this is my height and made the armor fit me to size the shoulders and knees will need to be sized down greatly but since this isn't my thread that the best advice I can give you here until I start my own build thread.