Here is the full list of all 26 Blade Assault achievements.
Upgrade Kil’s weapon [Evil Hunter] to Lv.5.
Upgrade Darcy’s weapon [Silence] to Lv.5.
Clear Assault Level 10.
Acquire all types of Cryo Cores.
Acquire all types of Electric Cores.
Acquire all types of Gears.
Clear Assault Level 8.
Clear Assault Level 5.
Upgrade Jenny’s weapon [Sidewinder] to Lv.5.
Clear Assault Level 3.
Upgrade all passives taught by Jack to the maximum level.
Acquire all types of Ignition Cores.
Summon [Jira] as Jenny.
Increase all resistance member’s friendship levels to the maximum.
Defeat the chapter 6 final boss, Ouranos.
Defeat the chapter 6 boss, Panus.
Defeat the chapter 6 Commander, Electra.
Defeat the chapter 5 boss, Cyclops.
Defeat the chapter 4 boss, Plantos.
Defeat the chapter 3 boss, Charlotte.
Defeat the chapter 2 boss, Ratmotan.
Wake up in Hank’s room after your first death.
Defeat the chapter 1 boss, Mac.
Wake up in Hank’s room after falling from Esperanza.
Upgrade Kil’s weapon [Destroyer] to Lv.5.
Upgrade Kil’s weapon [Inquisitor] to Lv.5.