Nearly finished SP now. It flatters to deceive I'm affraid to say its pretty small.
CODMW2 & COD4 are far better SP experiences this is pretty lacking & those scenes in the gametrailers video were the highlights of the entire game
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Looks like Activision pulled a fast one here by skillfully editing it to make the SP seem more enticing.
Overall its very lacking in any of the cinematical greatness & atmosphere both COD4/MW2 had for that alone its a letdown but the MP gfx are considerably worse than SP & MW2 is a long way ahead of this in every way I can think of
I would say its not anything more than an average game with a very dated engine & boring console focused gameplay.
I would give it 5/10 just for a few cool touches & being polished although its not without faults like several levels for no reason have major lag & mini spikes which cause serious stuttering & the gamepad has a major bug where you cannot even progress in 1 level without switching to the keyboard to operate a sling weapon
This type of game is best left on consoles for 10 year olds I seriously doubt it will sell the 18M+ copies MW2 did