I don't know if the colour can be called lively, but the games fits the other criteria you mentioned. To me it's the best looking game out.
Yeah.. I liked the MW2 SP campaign, it is short, but the story was freaking epic imo. ( I'm not familiar with any of the prior games / stories, this was the first of the COD series I've ever bought ) Lots of plot twists , but yes, first play through had me yelling WTB LEAN PLOX. Lean would make a lot of those furballs easier to live through. Instead , I have to jack-in-the-box-g18-stopping-power-spam crowds of enemy to win. lol
The links back to COD4 are the reason to why I love the mw2 campaign. "The Gulag" mission and onwards are what really make it good. I almost cried when I saw who the prisoner was in the gulag lol.