Your objective is to shoot the bad guys as accurately as possible. You can aim for the head or the body area. The closer you are to the center of each of these areas the more points you gain. The trick is to make every single shot count.
Kill all zombies before they reach the top of the canyon and wreak havoc on the citizens of Zombville. Kill them all, make money, upgrade your weapon and buy power-ups. Good luck!
On this mission, the command base has spotted an illegal trading business activity on the dock of a ship. They are sending you to the location to stop them. You have to eliminate all of them and stay alive to complete the mission. Good luck!
Shoot down the armed men by launching an attack in their own territory. Your mission is to shoot down as many armed bad guys as you can with your trusty Desert Eagle, M4 and Sniper Rifle. Get a kill per shot to receive a monster kill bonus.
It's a nightmare. You are trapped in an abandoned mine with an injured comrade at your side against God-knows-what. Make your stand, get out alive. Three words of advice: shoot to kill. These things are not human, they are monsters..