Please note that vehicles are not included. The purpose of these figures is for them to be pair with 3rd party vehicles within your slicer. For a list of freely available STLS, please use this spreadsheet.
I have tutorials on using these figures here and here.
Please note that all the British infantry sets include two STL versions - either with or without the chest respirators worn in 1940, this means they're suitable for use throughout the whole war in the European theatre.
These models are natively 6mm-scaled. To print them at 15mm, please scale upright figures to 190% on the X/Y axes and 200% on the Z axis (the zoomed in picture(s) show these altered proportions). Prone figures should be set to 190% on the X/Z axes and 200% on the Y axis.