The Dornier was one of my first loves in this game; a high speed light bomber repurposed into a heavy night fighter. The Kauz does retain some reminders of her bomber lineage in game; a payload of 400kg in high explosive bombs and a pair of defensive machine guns manned by the same gunner. (This despite the fact that there is an individual gunner modeled in game for each gun. All Otto does down in the belly of the ex-bomber is gather spent shell casings and fix coffee for the pilot and active gunner.) The Kauz's defensive firing arc is among the largest in game if not the largest outright. This is balanced by them being fairly weak and short ranged, only being 7.92mm in size. The Kauz is a premium, however, so this weakness can be addressed by placing a highly skilled gunner in the rear position and further reinforcing those gunner skills with a single piece of equipment; the rear gun stabilizer to increase range by 15%.
The other two equipment slots are best used with defensive gear like reinforced airframe and improved covering. If you don't have a pilot available for her with both levels of engine guru, however, I would recommend switching out one of those defensive pieces for an Engine Tuning module, as her speed is one of the aircraft's best attributes. Compared to the equal tier Focke-Wulf Fw.57 Fat Wulf I prefer the Dornier. She's a smaller target than the FW, faster, has more health and slightly outturns the bigger aircraft while sacrificing a little bomb payload and 250 meters of altitude handling. Skills being equal the Dornier should win in a contest between the two of them every time.
The Dornier is a great aircraft to practice heavy fighter tactics in, and strong enough in the role that she is my go-to aircraft for daily mission completions at low tier that are best carried out with a heavy fighter.
More videos are on the way; still learning new things about my Filmora editor every day and should have a great Stuka battle featuring Erdminger/Zigfried of Wraith Squadron soon, as well as a review for the Messerschmitt Me.163 Komet when Hawkeyededic gets the custom skin for her finished!