I love Zombie Horde 3 [url=http://armorgames.com/play/174/zombie-horde-3] 1. You should first gain money by killing zombies or go to the places they tell you to protect (yellow arrow on map.) But they're hard. Change your weapon by (right) Q, (left) E. With the knife I like to (If Green or White are following you) stop, cut, and run ( Stop, Drop, and Roll.
2.Upgrade your right hand pistol.
3.Gain monoey. Then, Buy A Shot Gun.
4.After meeting the scientist at the hospital, STOP GOING TO THE YELLOW ARROW, because It's to Hard unless you have an Assult Rifle (with lots and lots of ammo)and/or a Sniper Rifle.
5.Buy a Rocket Luncher (20000) , Blow up the Thing thats blocking the bridge and get out of there