I realised a few days ago that some times you don’t have an option to make your character look like he or she has seen battle. I checked and could only find four faces with scars (I might have missed some and Sylvari are a bit difficult to judge), male Norn, female Norn, male Human and female Charr. This feels a bit weird for a game that revolves around combat.
Now my suggestion is to either add one battletorn face for ever race/gender combo.
Or remove scars from those four faces and add another tab in character creation where you can chose from a number of different scars.