Killstreak 2

Killstreak 2 has you fighting for your survival against swarms of enemies trying to shoot you to death. You're able to choose from seven maps and different types of enemies, from an Assault Squad (very tough), Elite Snipers, Machine Gunners, and more. You'll be able to use different weapons as the levels move on. You'll start with a wave of attackers and the waves will keep coming until you run out of health. As you score points you'll unlock weapons that can toggle through with the number keys. The assault rifle and sub-machine gun are VERY effective. Just remember to hide when you're reloading. Killstreak 2 is non-stop shooting and fun!