From game manual
The HARRO KOEBKE was launched in 2012, taking over regular service at Sassnitz from the Wilhelm Kaisen, built there in 1978. Like the HERMANN MARWEDE, the HARRO KOEBKE was also built at the Fassmer shipyard in Berne. With a length of over 36 meters, she can reach a top speed of 25 knots. Her fire-extinguishing system pumps 10,000 liters of water per minute.