The TROOPER Frontier Dungeon Picture Guide

[Beddie]

Use the
FIE Ed team but swap KP and Odin with both versions of Dark Lilith (or someone who’s AOE, can damage all enemies and wear the Female Crimean bespoke or Solstice cosmic).
Both should have blight on them to prevent them from using their power move and they’ll kill everyone in one shot.

The times were usually half a minute at most

[IronMaster]

one-shot team (normal level):
Number of the Beast (max) - Eternity, Blight
Dark Lilith (max) - Navigation, Blight, Any gunner 2-set
Malakhov - Gluttonous, Blight (for achievement)
Nomad - Ragnarok, Bespoke