Ok Soldat-Hans, 87 views & no help. I'll take a swing at it since I am now downloading the files.
download
HLDS & save it to a file name of your choosing.
I saved mine to a folder named RO2.
Open CMD (start/run cmd enter) & then type the following. The quoted "hit enter" obviously means hit the enter key.
c: "hit enter"
cd \RO2 "hit enter"
hldsupdatetool "hit enter"
hldsupdatetool -command update -game "redorchestra2beta" -dir c:\RO2 "hit enter".
Files should start downloading. After that,
go to this thread (which is where I am at in the process).