Sortie

Sorties are a set of special missions that are assigned to players on a daily basis. Each Sortie consists of three missions of escalating difficulty that must be completed in sequence, where a mission must be completed before proceeding to the next one. The individual missions in a Sortie each have their own unique hazards and conditions that make the mission more difficult, from loadout limitations to enemies with enhanced offensive or defensive abilities. Regardless of individual mission conditions, only level 30 Warframes and players with Mastery Rank of 4 and above can participate in Sortie missions. Sorties reset each day at 17:00 hours, or 5:00 PM GMT.

Completing all missions in a Sortie will reward the player with a random reward picked from a listed rewards pool containing up to 21 different items, ranging from rare items to Event weapon parts. This pool of items lasts for 15 days before being renewed for a new set of rewards.

Each daily set of Sorties is thematically linked to a preexisting Boss, which will determine the Faction that will be present in all three missions.

Sorties were implemented in Update 18 on December 3rd, 2015.

Sortie Conditions
The following are the various Conditions that can be encountered in Sortie missions:

Mission Conditions

 * Rescue sorties will have the execution timer activate as soon as players enter the prison complex.
 * Similar to the Trial console, all consoles must be hacked without use of Ciphers. Grineer consoles only allow up to 3 mistakes to be made before the hacking fails.
 * Additionally, all enemies will prioritize attacking the hostage over the players once freed.
 * Defense sorties require 15 waves to complete.
 * Interception sorties require 4 waves to complete.
 * Spy sorties require all three Data Vaults to be successfully completed.
 * Similar to the Trial console, all consoles must be hacked without use of Ciphers. And for Grineer consoles, only up to 3 mistakes are allowed to be made before the hacking fails.
 * Excavation sorties require at least 1,200 Cryotic before players are allowed to extract.
 * Occasionally, there is a bug that will allow players to extract after 100 Cryotic. This is most likely due to the fact that the original amount required was 100 before adjusting.
 * Survival sorties require a minimum of 20 minutes to complete.
 * Exterminate and Sabotage missions will start with the enemies already alerted.

Rewards
Completing a Sortie will give players a single reward selected at random from the seasonal pool of rewards. The rewards are different for every player that participates in a Sortie.

Tips

 * It is recommended to coordinate with your teammates on what gear and loadouts to use.
 * Stealth is recommended especially for Spy missions due to the strength of the enemy at the levels sorties take place. Alternatively, it may be prudent to simply ignore enemies altogether and prioritize heading to the vaults as quickly as possible.
 * Covert Lethality can be useful in soloing sorties, as the mod's bonuses on stealth finishers can bypass armor scaling due to the enemies' high levels, on top ignoring any potential modifiers that increase enemy durability. Bear in mind that not all enemies can be killed with stealth finishers, so ignore them if possible.
 * For Sabotage and Exterminate sortie missions, where enemies spawn at the start of the mission in an alert state, enemies can be returned to relaxed status by initiating open combat to make them trigger a map-wide alarm or a lockdown, and then deactivating said states by hacking a control console. Alternatively, using powers and abilities that trigger finisher attacks, such as Paralysis, Teleport or Cloud Walker can be used to trigger Covert Lethality's fatal attacks even against alerted enemies.
 * Playing a sortie solo will not decrease the difficulty or the amount of enemies spawned. Therefore, it is recommended to play with a full cell when tackling missions that require kills, such as Survival or Defense.
 * For missions that have weapon limitations, it is recommended to bring along a Warframe with high-damage offensive powers, like Ember or Excalibur, to maintain effective firepower.

Sortie