Here comes my third entry of my Left 4 Dead campaign write ups. This one is 'Left Behind', it consists of only three levels, however these levels are quite long and could have easily been split up in to four, possibly five at a push. The campaign itself is really quite challenging and I would suggest getting a melee weapon as early as possible as the hordes when they come are quite large and just as you think you are doing with a horde attack more come along.
The first level starts you off in the outskirts of a city, you fight your way through streets and buildings, along with a brief period in sewers. There does seem to be a lot of supplies laying about, but considering the amount of zombies you easily can go through all of your ammo quite quickly (which is why I suggest grabbing a melee weapon).
Second level of this campaign you take exit a building and head once again into some sewers. After you escape the sewers it's a short walk to a dam, which is where I got a bit lost and had to put the in game hints on as you go on a scavenger hunt to find parts to a computer so you can open an electronically locked door. There is a lot of back tracking at this part as it seems you have to get them in a certain order even though some parts are really quite close to each other. Just like the first level there is a hell of a lot of zombies but there is also a lot of supplies to make up for this. After you have figured out this frankly quite tedious task of fixing the computer to open the door, you make it to the other side of the dam. Awaiting you is a train taking you to the final level, but first you have to wait for a cable car to get you down to the platform below while you defend yourself from on coming zombies. This horde seems to be lacking severely in the zombie department and could of don't with a lot more. I would say this final horde is quite pitiful to be perfectly honest. This level could do with some tweaking but overall it is still quite good.
Now we come to the finale which will be based at a military base but first you have to get there. After fighting your way off the train and through the train station you come to a gated area. A gated area which looked like it was being defended by the military at some point, due to the dead marine with a gun right next to you. He also happens to have a radio with him which tells you there are zombies heading your way which come along when you open the gate. It can never be easy, so after the initial group of zombies you have to find your way past another security door which leads to what looks like a loading dock for trains, I'm not sure but I did have yet another tank battle here which was fairly easy due to the openness of the area. It's not just a couple more streets away until you get to the military base. So now we are at the finale finally. However rescue isn't coming for another 10 minutes yet. Luckily there is a shed load of ammo and supplies to keep you going until they get there. To start with it was quite annoying until I went up in one of the watch towers and so long as you keep an eye out for smokers this finale is extremely easy as you can kill everything climbing up the ladder.
It is a good campaign, though could do with a few tweaks here and there and maybe be split in to 4 levels instead of 3. Below is my attempt at the finale of this level and like with my other write ups of these campaigns if you want to have a look at what the rest of the map is like I have uploaded my run through on my youtube channel.
Next campaign on the list is 'Blood Tracks'