Yes, a Halberstadt Cl.II would really, really be great; although, when it comes to two-seaters (is that the word?), personally I would love to see a DH.4 (lots of different engines/versions) or a Breguet XIV. Or a Morane-Saulnier BB! Not to mention all those austro-hungarian beauties! Or even all of those, mentioned here!! AAAAAARGH... (Sorry, I tend to become a bit greedy, when it comes to Wingnut Wings...)