which perticular mission has to be done to get the hull cracker

The mission you need is The Major’s Footlocker. Completing it rewards the Hullcracker blueprint and the launcher ammo blueprint.

What to do

• Progress Tian Wen’s questline until The Major’s Footlocker unlocks.

• Finish that quest, then learn the blueprint from your inventory.

• If you do not want to wait, the Hullcracker is also sold by Tian Wen for 30,000 credits, limited to 1 per day.

Quest chain

The quest path commonly listed before it is:

1. Straight Record.
2. Keeping the Memory.
3. Echoes of Valley Ridge.
4. Unexpected Initiative.
5. A Symbol of Unification.
6. The Major’s Footlocker.

Quick note

Some guides mention slightly different wording like “Major’s Locker,” but they’re referring to the same Hullcracker blueprint quest.

Would you like the exact location and objective steps for The Major’s Footlocker?