In a letter posted on the CrossfireX website, Sooro Boo, the Executive Producer at Smilegate, spoke about the recent changes that had been made to the game following beta testing last year.
While the post doesn't talk much about Operation Spectre, Remedy's story mode campaign, it does touch on the multiplayer experience.
Boo started the letter talking about graphical improvements; sharing comparisons between the beta levels which players got to explore for a limited time, to what they look like now. In the screenshots, lighting plays a major part with a greater focus on natural light warming the area.
You can read Boo's original letter on the CrossfireX website, HERE!