Micro transactions, macro fun
In the words of Shrek, this game has layers. Like an onion.
First there's the shooting. The recoil, reload times, and weapon switching add a satisfying learning curve and help to level the playing field of this game, and there are plenty of weapons to choose from. Aiming is so snappy in this game, you'd swear you're playing a turtle simulator.
Second, there's the movement. There's a walk button so you can hide your footsteps, but no going prone, so you can't lie down and take a nap. The fastest way to move is taking out your knife, which makes me think Usain Bolt should take notes.
And finally, there's the tactics. This is a teamwork game through and through. It doesn't matter if you're on a team made up of six-year-olds or Seal-Team Six: whichever side talks more and better will win.
If it didn't have chests and keys, which are more addictive than crack, I would not have been so stingy with the stars.