What is so complicated? New age games are not meant to be as easy to pick up as super mario bros. Usually if you play a little on the single player you can get the controls and any special features down pat (like noob toobs, turrets, driving/flying.)
I agree it needs to be a bit more complicated. There should be more customization to character and guns....I mean what good is a Green Grassy ghillie suit in an urban environment....or desert for that matter...