Will ba another Russian led disaster. Most North Koreans are short underfed guys, riddled with parasites. Their weapons mostly based on 1950s and 1960s designs.
The communication and cultural differences with the Russians are immense.
Basically it's a symbolic cannon fodder stunt.
The primitive North Korean ammunition stocks are helpfull to the Russian army however. Even very old and outdated weapons can still be effective. Although it's the usual Russian stupidity, recklessness, lack of discipline and alcoholism that will make it all pointless.