Meltdown

Meltdown is a mission that was added to on February 11, 2015. This was reveled early by someone checking the SWF files of the game, and is now out on Boreas, where they say they lost communication with the power plant here, and its time to check it out.

In comparison to the earlier missions, Meltdown is overall a very difficult map as you have to wander through small corridors with doors that open and close randomly depending on how many zombies are in that corridor or room at the time. Light machine guns, power assault rifles, or a Hornet are recommended for this mission as you are likely to get cornered many times trying to find the reactors and during the boss fight.

Adding to the difficulty, you are given only five minutes to find each of the three reactors AND shut them done, as well as having to avoid the green medical kits located near the reactors as they deal massive damage to the player if picked up. You also must return to the computer and restart the power plant, which will also trigger the boss fight in the process.

And in the end, a large number of bosses will spawn. An example of this is a devastator plus five regurgitators, and an elite wicker, followed by a massive horde of zombies. To win the boss fight, it is recommended you circle the building first and mow down the horde plus any weaker bosses that may appear (such as regurgitators) before focusing on the stronger ones.