Remember folks, the first splinter cell games was this autistic stealth game that you could play multiple times, and was a really great game, the same was with the third game called Chaos Theory. It was serious but the story was just there to be an excuse to sneak in the levels, the MP to these games where interesting also.
Then for some reason, they created Conviction that was an action mobie, then it just went full retard, and never went back to normal.