Fate/Accel Zero Order Collaboration Event (US)/Main Quests

ACT-2
Clear Mission 2.

ACT-3
Clear Mission 80.

ACT-4
Clear Mission 26.

ACT-5
Clear Mission 50.

ACT-6
Clear ACT-5.

ACT-7
Clear Mission 33

ACT-8
Clear Mission 55

ACT-9
Clear Mission 36

ACT-10
Clear Mission 29.

ACT-11
Clear Mission 96.

ACT-12
Clear Mission 23

ACT-13
Clear Mission 39

ACT-14
Clear Mission 20.

ACT-15
Clear Mission 97.

ACT-16
Clear Mission 51.

ACT-17
Clear Mission 60.

Note

On Lancelot's first turn, his Master Matou Zouken will use a Command Spell to fill up his Noble Phantasm gauge, allowing him to use Knight of Owner. It is rather weak however, it will raise Lancelot's attack for 3 turns per the effect of his Noble Phantasm.

ACT-18
Clear Mission 40.

ACT-EX
Clear Mission 11.

Trivia

 * The support unit that is available for the player in ACT 18 is actually the Waver Velvet from Fate/Zero himself who received a power-up from Zhuge Liang. This is similar to Emiya Shirou from Fate/Kaleid Liner Prisma Illya who also received a power-up from his future self in the form of an Archer Class Card.