your German things will always be assigned to East in WW2 mods.
As the Russian (Soviets, whatever) were allied with the UK, US, etc., most mods count them as West, and put the Germans on East for easier editing. Also, there isn't a "Nazi" side unless the addon comes in a total conversion where they changed the side names, in which case it'd be exactly the same as East anyway.
and yes, beta addons are almost always just as good as other ones. sorry to say, i've not seen any level bombers either. will let you know if i see any.