Apart from being mostly pay 2 win, it pushes for the player to spend money by putting better gear behing a level wall and the only way to level up thru beating campaign missions. This wouldn't be a problem if those missions didn't require the gear behind the level wall. And the only way to upgrade it get better gear is to grind for hours or pay for better gear which useless after a while. Also the AI always has the advantage when preforming combos and using shadow abilities. Good game ruined. :/