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.

Completing all missions in a Sortie will reward the player with a random reward picked from a listed rewards pool containing up to 12 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.

Sorties were implemented in Update 18 on 3 December 2015.

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