Part 1: Blood Harvest campaign begins in the woods. The path is fairly linear as it leads you through the forest of zombies to a bridge that you and your mates / AI must cross. After the bridge there is a room full of ammo and other various extras usually. Then once again it is following the road to the safe room not far ahead. It is however still littered with zombies and special infected :).

 

Part 2: This part begins with a small hallway. To your left (from the saferoom) there may be various items. To your right there is a stairwell that leads you to where you are supposed to go. There is then a train station where usually a tank or witch is hanging about. Once you get down to the bottom there is a door at the end which has a fire alarm switch and sets off a horde. After passing the horde you must go upstairs or stay down and head to the left. After following the path you will come outside to the train yard where heaps of zombies are usually waiting about as you advance. Once you go through a couple of tunnels and a small hallway you get to the safe room. However be warned that this is the other place that the tank usually appears.

 

Part 3: The path is fairly linear at this part all the way through the map. There are some features to be watched out for such as motovol cocktails at the bottom of the stairs inside the house and a pistol sometimes to the right after the door. The bit outside with the trains is fairly hard. I advise you to camp ontop of one of the trains with all 4 survivors watching each others backs but watch out for smokers. To set the horde off there is a lever on one of the trains (red) that is near the end of the track. After passing the hordes there is a ramp left for you to advance to the safe house.

 

Part 4: You should start by making your way to the barn outside. It is straight forward as soon as you walk out the safe house. After exploring the barn and gathering any items make your way down through the trees to yet another place that looks like a train station. There is a car just beyond that you can trigger and set of a horde of zombies. I strongly advise you not to shoot it and if you do go inside the house into the toilet, door on the left to the left. Then past the house is another house that you must enter through the basement (bloody surprise :D) and make your way to the top to go out the window. Once outside go across the bridge and into the safe room.

 

Part 5: Part 5. Blood Harvest, supposedly the hardest campaign. Weapons will not suffice. Button bashing with the mouse button will probably get you no where without aim, and a brain. Start by making your way along the path and up the ladders. Then one of you, or all of you, can jump down to set off the horde. Once you jump down head to the left where there is a gap in the fence, then go to the wall with the trees, back on yourself, this is an excellent place to defend against the horde. After doing that you can make your way through the cornfield. Then its you vs the hordes and tanks waiting for your rescue, the army vehical which will park outside. The barn is the best place all in a corner near the ammo. Good luck :)... You will need it on expert.