Some guy at Mantis said to use another build but I didn't know where to find it,Have you tried checking the Source code projects site? (link at HLP main page)
Will the RW 2.1 patch fix this problem?
Some guy at Mantis said to use another build but I didn't know where to find it, I installed different fs_open builds but it didn't fix (in fact it worsened it), I searched here only to find dead links to fixes, and now I'm getting impatient.
Are you using 3.6.7 or a different build? I think this has been fixed recently, if that's a red alert mission. Anything newer than 20051117 should have the fix but that bug did slip into 3.6.7 without anyone noticing it. Try a newer build, one of the CVS releases, and report back as to whether it works now or not.