My only concern about why the single player is sorry is that its too easy.
1.A.I. stands right in front of you not shooting while you line up a headshot.
2. Team A.I. have a very hard time taking out enemies. but when I shoot the enemies they go down after 5 seconds. Thus making me have to kill almost every bad guy in the game. I thought there was no I in Team
2.At least 3 checkpoints in every level which gives you full health and ammo everytime you cross one.

even on admiral level.

Thanks for holding my hand the entire game zipper.
Im pretty sure Navy seals in reality dont get full health ammo when they're in the middle of an objective to complete.
Sp is BS but I will love all the unlockables. :)