Scenery changes but gameplay from mission to mission is so repetitive. Boring in that all you really do is swipe to advance or retreat your character from cover to cover and shoot by tapping on screen near the enemy. Thats about it. Oh, you can switch between weapons.
You upgrade your weapons and armor fairly rapidly at the beginning. Which is kind of exciting. But it doesnt take long before it becomes evident that you will not be able to proceed at the same rate without laying out some real cash.
Overall - the lame gameplay makes this game not worth your time.
AllenPeek about Max Ammo, v1.15