
Hi , This is not a tutorial, but you can rename it to follow a few steps.
At first,Find "models.csv" file in your DH folder (often, /darkest hour/mods/darkest hour full/config/).
Open it and search keywords "Germany Land".
you will find Germany panzer's unique names and rename it as you like.
and note unit number you renamed (for example The PanzerⅥ is "MODEL_GER_5_5").
next find unit picture file (extension is "bmp" file. often, /darkest hour/mods/darkest hour full/gfx/interface/models/ ,or /darkest hour/gfx/interface/models/ )
and search keyword " ill_div_ger_5_5".
the picture is division pic that you renamed in "models.csv". if you would like to rename it , you can do it too. but perhaps no need.
you can replace the picture as you like. but it is a little complexity. so I omit it here.