What's you favorite strange airplane from WWII? Plenty of choices, but here's one of mine: the Zveno composite bomber / fighter. The Z-1 was designed to carry up to three fighters into battle for self protection or for extended range strikes, it was successful enough that the Soviets developed the project into the Aviamatka Z-6, which could carry five fighters. The Z-7 actually saw combat, carrying two dive bombers. Check out the linked article and imagine the crews' reactions when they were assigned to this duty.