Not a terrible cliche...when you consider how much action the nazis saw in WW2, then the number with injuries like shrapnel wounds and such would be quite high.
But a scarface nazi definitely does add to any movie.
That makes me think of all those war comic books I used to read as a kid. The nazis in them used to say stuff like "Gott in himmel!", "Der Teufel!" and "Aiieeeee" when they got shot.
I used to buy stacks of them from this old shop where this creepy old bloke had shelves full of porno mags for sale.