for example in; reference to a 6ft person? is this something I should watch for and if so, where would I change the reference or scale that 3ds max uses. Or should I just go and do it. its going to be for my portfolio.
It can depends of your target engine. Most of the time, the scale of your environment is based on the player scale. It's the view of the player which guide your scale reference. So most of the time you adapt the scale of your 3D Software to your target engine/game. If you stick to you 3D app only, you are free to use…