Wookieepedia:Star Wars: Uprising Super Walkthrough/Missions

Story Missions
Story Missions provide the structure for the plot line in Star Wars: Uprising. They can pay out in Materials, Crystals, Credits, Gear, and Crew.

Supplemental Missions
These missions are regularly used by The Smuggler to level up themselves, materials, and receive credits.

Repeatable Missions
(Unlimited plays once available)

Repeatable missions do not provide XP, but provide a means to gather more Level Up Materials and Credits.

Assault Missions
(Up to 10 per day, but normally 5)

Assault Missions provide a means to receive Battle Readiness in preparation for Sector Battles. They also provide Weaponry, XP, and Credits. 5 Assault Missions are available in each 24 hour period with the exception of following a Sector Battle where 10 are made available as make up.

Daily Credits Missions
(Up to 5 per day)

Daily Credits Missions are a common way to raise funds to level up, upgrade, and purchase items. They also provide a regular source of XP. These missions are only available once per system in a 24 hour period unless The Smuggler is leveled up to a multiple of 10, which causes the missions to become available for completion at a higher skill level.

Daily Opportunities
(1 per day)

Daily Opportunities come in the form of other characters asking for your help. Payout can be in the form of Credits, Equipment, Crew, Materials, Crystals, and even Chromium. They only appear once per 24 hour period.

Imperial Opportunities
(Rarely Appears)

Imperial Opportunities are the same as a Daily Opportunity, with the exception that they are rare, tend to pay out with Imperial Equipment. The Empire is asking for assistance to resolve issues they are facing.