Love the game but they should add multiplayer to the campaign and infinite mode because playing as border patrol with my duo would be chaos and so much fun

You white people stay out of my country

Great game for a variety of players. If you like a decent story line, it has it in the campaign mode (which you can play at least twice to get different endings). If you like action there's some of it in the campaign as well. I personally like levelling up and getting better equipment, and it's very moderatly done - it's not super easy that it bores you, but not super hard and unachievable. And the endless mode is a cherry on top.
I didn't really notice anything wrong with the game mechanics.