Index: tactical_save.cpp
===================================================================
--- tactical_save.cpp   (revision 2006)
+++ tactical_save.cpp   (working copy)
@@ -2351,7 +2351,7 @@
        if( FileExists( zMapName ) )
        {
                //Open the file for reading
-               hFile = FileOpen( zMapName, FILE_ACCESS_READWRITE | FILE_OPEN_EXISTING, FALSE );
+               hFile = FileOpen( zMapName, FILE_ACCESS_READ, FALSE );
                if( hFile == 0 )
                {
                        //Error opening map modification file,