Sudden-Strike-Maps

I had rwm6.7b-5 installed, i downloaded the bugfix 6.71 and installed it, everything seemed ok, but when loading a map, it gave me error.

unkown sound scheme us_76

Should I download and install the 6.7final first and then the 6.71bugfix??
somebody can help please???

I thought the 6.7b-5 was the ...