If you like RB but have a thirst for better graphics and historically painted aircraft/unit markings you will love my patches. I have one which encompasses the entire war : Wingstrut 2.2.
Also, I have another separate patch : USAS.
Wingstrut 2.2 has everthing from Belgian units to Schlasta units with histoical markings and schemes. You won't find any other patch that can match the volume and content of historically painted aircraft.
USAS patch is intended to be played from April 1918 till end of war and it adds nearly every USAS unit to see combat and about 10 more US aces with historical schemes for all.
First thing you need to do is download the Campaign Manager program which will allow you to set up and use various programs.
Below is the link. If it does not show as link just copy it into your location bar to go to the site. Be sure to check out everything.
http://members.xoom.com/wingstrut/