11: That One Scene from Rambo
Players may build traps but may not use any guns or abilities EXCEPT for "Goin' Commando!!!"
12: The "Hold Still While I Aim"
Players must only use grenade launchers (Blooper, Thumper, and Egg Launcher) and freeze traps to kill mobs
13: Muscle Memory Loss
Keyboard & Mouse players must play with their non-favored hand on the mouse. Controller players must play without using their thumbs.
14: The Timeshare
A team of players must complete an Atlas mission using only one gun. At the beginning of the match, players choose one weapon to be The Gun. Whichever player is holding The Gun may shoot it, but the others are restricted to melee combat. Whenever the storm changes direction, the player holding The Gun must drop it for another player. If The Gun breaks, the player that broke it may choose a new weapon to be The Gun.
15: The Hot Potato
During the defense phase, players cannot reload their weapons. If a player empties their clip, they must stop what they are doing and IMMEDIATELY drop the weapon on the ground. They may not replace the weapon from their inventory, however they may pick up weapons that have been similarly discarded by other players.
16: The Scramble
Players must complete a Category 4 defense but cannot build walls or traps until the Atlases have been activated.
17: The Quartermaster
Before the mission, one player is designated as the Quartermaster. All other players must remove any and all ammunition from their inventory, and the Quartermaster must remove all guns. When a player runs out of ammunition, they must call for the Quartermaster to come replenish their supply by dropping enough ammo to fill a clip (but not two). The Quartermaster may not drop ammunition when no player has called for it, nor may the players call for a refill before they have emptied their clip.
18: The Magnificent 4
All four players must use Ninja heroes, and may only use class abilities and melee weapons in combat.
19: Scissors Beats Rock
Players must fight an elemental storm using only weapons that are weak to that element.
20: The Big Game Hunter
Before the defense phase, one player is chosen to be the Hunter and the other players become Spotters. The Hunter is the only player that may attack Mist Monsters, but may only damage them if they have first been marked by the Spotters.