I wasn't able to find anything on the Freightliner specifically. I did find
this page that gave some dimensions on trucks in general; mostly wrt the trailers, but using the measuring tool in Gimp and a bit of math I was able to work out that the total length is about 7 metres. Since the
Ratel IFV is 7.21 metres long and
HFTD Breacher is about the same length as THS-02 Convoy (without the trailer) that means that it would make sense to include Breacher in a Legends display.