German Units In the Argonne?

[E Williams]

trying to find the exact german units who opposed the 308th Inf Bn in the Argonne Forest.

I know the german units that were part of the German Fifth Army that had that line but I can't seem to find the units opposite the Lost Bn. A Hessian unit, 354th was mentioned in the movie but in my reference books it doesn't reference them during 1918. Goes from 1917-1919.

Thanks

Ed