It does indeed mention the Focke-Wulf Sturmgruppen, and gives a fairly dramatic and graphic account of the havoc they wreaked on an 8th AF raid on Kassel.

I also remember an anecdote reproduced in which a US propaganda poster on a wall at a US 8AF base in England asking 'Who's afraid of the new Focke-Wulf?' beneath which some humourous airman had chalked 'Sign here'. Before long every flying man on the base had added his signature, including the group commander!