Complex sentence: In this Rose and Allnut are planning to attack a German cruiser named "Dortmund" (loosely based on the SMS "Königsberg"), with the launch sailing down the river to attack it in the river delta.
Split into simpler sentences: In this Rose and Allnut are planning to attack a German cruiser named "Dortmund". A loose version based on the SMS "Königsberg", with the launch sailing down the river to attack it in the river delta.