A Conventional Death is a location-based challenge in Borderlands: The Pre-Sequel. To perform this challenge in Pity's Fall, Poop Deck must be killed before the Skipper kills him. It is worth 10 Badass Rank.
Strategy[]
This challenge can only be completed when the story mission Intelligences of the Artificial Persuasion is active, as Poop Deck does not respawn after being killed, effectively giving only one attempt per playthrough. The window of opportunity is extremely small, as Skipper will follow up and kill him almost immediately.
Claptrap's One Last Thing can be combined with a Hulk or Ravager shotgun and a Sapper class mod that adds points to said skill, though this is only achievable in TVHM and UVHM. As One Last Thing boosts splash damage on the second-to-last shot, with proper aiming Poop Deck can be killed instantly by the pellets' splash.
There are several methods that are effective. Vladof grenades, since they have an area of effect damage, will be useful as they can be thrown at the door before it even opens; it is likely to require more than one grenade. Since Poop Deck is a flesh enemy, fire grenades would be the most effective, though he is not spawned within an atmosphere. A singularity grenade could also be used to drag him away from the falling door, although this requires precise timing and a short grenade fuse time.
There is a very small window of opportunity to freeze him before he reaches the doorway where he will be crushed. An Excalibastard is guaranteed to freeze him if it lands a critical hit.
Similarly, any character utilizing a sniper build may be effective. An appropriate level Jakobs sniper and amp shield can provide enough damage to kill Poop Deck before he is crushed.