The smoke house with the wires is nothing to fear, promise. I didn't even touch a wire, they were spaced far enough apart. And it was more steam than smoke.
However, if there is a giant water slide into a mudpit? I highly recommend skipping it. I hit the water at the bottom hard enough that it knocked the wind out of me and I saw stars. The rest was fun though!
Also? I was really out of shape, and I made it to mile 2.5 before I lost my last flag. Walk a lot. Save the energy for sprinting past the zombie bottlenecks.

Everything the light touches is my kingdom.