What’s wrong with this picture? Freedom, the first littoral combat ship, has been in service for only two and a half years. But it’s lost that new ship shine.  Exhaust blackens the superstructure and the hull in this photo, taken June 7 while Freedom landed a helicopter as part of a joint maritime exercise. More exhaust is visible spewing from the stack. “The exhaust marks can be scrubbed off, but the closer you get to the orifice, the less it is soot and more it is actual burnt on charring,” a user named spek commented on the blog, Cdr Salamander.…