Obtain the Forte Gigas:
Before the end of Scenario 46 Joshua and Cliana must get an individual kill count of at least 70. Then on Scenario 47 you must not allow Joshua or Cliana to engage any enemy unit or enter any allied battleship. Either character must reach the designated locations and complete the scenario's SR Point in six turns. The Forte Gigas will be available when you complete Scenario 48.
Unlock the Shishioh Blade Equippable Weapon:
Bullet and Kusuha must each have an individual battle encounter with Kanan and Taihou on Scenario 38. Then on Scenario 40 perform the same requirement with Bullet and Kusuha. Bullet's individual kill count must be 50 or more before the end of Scenario 40.
Unlock the High Spec CPU:
Sanger must either destroy the JinRai or have it retreat in Scenario 41. Then on Scenario 42 you must complete the scenario objectives as usual by luring the JinRai to the designated location. When you have accomplished that move the Dygenguard and Aussenseiter next to the JinRai and have either Sanger or Ratsel reduce the JinRai's HP to at least 3,000.
Unlock the Boost Hammer Equippable Weapon:
To get this weapon Arado, Seolla or Latooni must either destroy or force Jeane's Kerberlion to retreat in scenario 39.
Unlock Extra Attacks:
Complete the following tasks to unlock extra attacks for the indicated unit.
Sanger must have a kill count of at least 60 before the end of Scenario 42.
Cybuster, Gaddeath, Zamzeed and Diablo:
Masaki, Tytti, Mio and Presia must have a combined total of at least 100 kills before Scenario 17 in Masaki's route.
Extra Attack for Valsione, Granveil and Galguard:
Lune, Yang Long and Zashford must have a combined total of at least 75 kills before Scenario 17 in Lune's route.
Complete the following tasks to unlock the corresponding item.
Mark Of The Brave:
Michiru must destroy at least 3 mass-produced Jinrai before Scenario 37 ends.
Ibis must destroy 8 enemy units in Scenario 43 and have an individual kill count of at least 50 before it ends.