It’s kind of hard to see what’s going on in this Photo Of The Day, but that’s how snipers like it. You are looking at a sniper from the Marinejegerkommandoen (MJK) / Norwegian Naval Special Operation Commando during an exercise and training. You can see the muzzle flash from his Heckler & Koch HK417 and you can just barely make out his Schmidt & Bender riflescope, and some of the rubber bands around it. Bottom-right you can see the dangerous end of the spotter’s firearm, most likely a suppressed Colt C8 carbine.
The motto of the Norwegian Marinejegerkommandoen (MJK) is “Prepare for tomorrow’s threats, today”.