The Maxima Chameleon line is a medium brown colour, yes the rigging wires were steel, but after a few days of mud, dust and rain they would quickly discolour.
The thing about Roden is that their 1/48 scale models are very good, but just recently they seem to have possibly upscaled their 1/48 scale to 1/32 without enhancing the detail that the larger scale requires and also in a lot of cases the lack of detail, some people agree, some disagree, that since WNW have appeared on the scene, if you compare the models, WNW kits, with their excellent detail, the fit of parts, the included PE, their superb decals (Cartograph, one of the worlds best) and their 20+ page full colour instruction books, then a lot of kit manufacturers, Roden included, have a hell of a lot of catching up to do, but please dont get me wrong, a Roden kit will build up in to a cracking model, with work, a lot of people enjoy this part of the hobby.
A final thing to remember is the price of a Roden kit in this country + post and packing works out not much cheaper than a WNW kit which is postage free.
I've included a couple of links of sites for you to have a look at:-
The Aerodrome a purely WWI site.
and
Home Des Delatorre's site, Des is also a member of BM, a great source of build information and methods of detailing.
Cheers.
Pete