Stage 4: Barns

Setting: This stage is very similar to the second stage. You progress through tents and various other background buildings for amusement parks. The set piece mentioned in the stage title are some abandoned barns that you must travel through and then over in order to make it to the end. The safehouse is located inside the back entrance to a stadium, where the Midnight Riders (who have conveniently been choppered out) were to perform when the infection broke out.

Crescendo Event: Unlike most stages, the Crescendo Event here is at the very end. You must open the gates to the stadium, which attracts a horde of Infected. The catch is that they will never stop coming, and the only way to make them stop is to reach the safehouse. If you want to artificially inflate your zombie kill score, you can kill near the gate itself, as there is a supply of ammo there, and just gun down zombies as they run at you down the long corridor up to you. Bile bombs and pipe bombs are perfect for this Crescendo Event.

General Tips

Don't get pulled off of the barn by Special Infected, as you will definitely die. THe Tank for this stage loves to hang out in the barns, but he's also fairly easy to kill thanks to how much stuff is in the barns. There is an achievement you can get by taking an adrenaline shot and hitting the strength gong at the beginning of the level. Only one person gets the achievement per play. Much like the previous achievement, there is another for playing the whack-a-mole game only a short while after the gong. You have to get 99 points, at which point the game breaks and every member of the team gets the achievement.

Stage 5: Concert

Setting: It's time for a finale! This one is more traditional, with the survivors holding out against four waves of Infected before the chopper comes. You must make your way through the back area of the stadium before arriving on the stage. You can attract the attention of a helicopter pilot by lighting some fireworks, but doing so will also attract countless Infected to your position. So get ready to fight!

Finale: This finale is done in stages. After each stage, you have a brief while to rest and restock before the next, as each stage is triggered by the players. One player must trigger the pyrotechnics, which will attract Infected. After triggering it a few times, the chopper will finally arrive at a random plac ein the stadium and the players must jump aboard. The best position in the entire finale is the stage, as it is easiest to defend thanks to narrow kill zones.

General Tips

Fireworks function much like gas cans. If you shoot them, they will set everything in the area on fire. This is also the easiest way to get the achievement for burning a clown Infected and followers. There are lots of supplies in the seats, so make sure to restock before continuing with the show. This is the only finale that lets you do this. One person must be holding Gnome Chompski in the helicopter to get the achievement, and all players get it, regardless of status.