Here is the Daumann Da-12 heavy bomber.
Originally designed for the Imperial Russian Air Service in 1930, the Rheinland Luftstreitkräfte took notice after it's stunning performance over contemporary American bombers and fact that the R-planes the Rheinland Luftstreitkräfte processed where over 10 out of date and where extremely vulnerable to modern fighters. An order for 500 aircraft was placed in 1931 which was followed by another 500 the following year.
It first saw combat in the Iberian Civil War of 1932-1934 in which the aircraft carpet bombed American backed Republican forces while take little losses itself as they where heavily armed with 12 7.92 machine guns that easily tore up American built fighters.
By the outbreak of the second Rheinland-Amerika on the first of January 1942 the Rheinland Luftstreitkräfte had over 2000 of these large but outdated bombers but they had a large role in the Battle of Los Angeles in which they drop paratroopers behind the American lies while other bombers bombed them. they where retied in 1947 after the end of hostility's but they continued life as transport aircraft as they could cover a lot of ground and where extremely durable and very easy to maintain.
Here it is in basic camouflage.