After ~7-8 hours of grinding and 2 good attempts that I threw like an idiot, I finally got Shottyman Angelic!
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DoomRL (0.9.9.7) roguelike post-mortem character dump
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Garret, level 5 Hell Baron Major Scout,
defeated the Mastermind at the City of Dis.
He survived 231084 turns and scored 92547 points.
He played for 1 hour, 20 minutes and 22 seconds.
He opposed the Nightmare!
He killed 2020 out of 2364 hellspawn. (85%)
He was an Angel of Shotgunnery!
He was also an Angel of Overconfidence!
-- Special levels --------------------------------------------
Levels generated : 4
Levels visited : 1
Levels completed : 0
-- Awards ----------------------------------------------------
UAC Star (gold cluster)
Shottyman Diamond Badge
Shottyman Angelic Badge
Daredevil Diamond Badge
-- Graveyard -------------------------------------------------
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-- Statistics ------------------------------------------------
Health 0/50 Experience 10058/5
ToHit Ranged +0 ToHit Melee +0 ToDmg Ranged +0 ToDmg Melee +0
-- Traits ----------------------------------------------------
Class : Scout
Hellrunner (Level 2)
Dodgemaster (Level 1)
Intuition (Level 2)
Int->HR->HR->Int->DM->
-- Equipment -------------------------------------------------
[a] [ Armor ] red armor [4/4] (66%)
[b] [ Weapon ] plasmatic assault shotgun (7d3) [6/6]
[c] [ Boots ] nothing
[d] [ Prepared ] combat shotgun (7d3) [5/5]
-- Inventory -------------------------------------------------
[a] shotgun shell (x18)
[b] shotgun shell (x50)
[c] shotgun shell (x50)
[d] shotgun shell (x50)
[e] shotgun shell (x50)
[f] shotgun shell (x50)
[g] shotgun shell (x50)
[h] shotgun shell (x50)
[i] shotgun shell (x50)
[j] shotgun shell (x50)
[k] shotgun shell (x50)
[l] shotgun shell (x50)
[m] shotgun shell (x50)
[n] shotgun shell (x50)
[o] large med-pack
[p] large med-pack
[q] large med-pack
[r] large med-pack
[s] large med-pack
-- Resistances -----------------------------------------------
Bullet - internal 60% torso 60% feet 60%
Melee - internal 60% torso 60% feet 60%
Shrapnel - internal 60% torso 60% feet 60%
Acid - internal 60% torso 60% feet 60%
Fire - internal 60% torso 85% feet 60%
Plasma - internal 60% torso 60% feet 60%
-- Kills -----------------------------------------------------
1898 former sergeants
2 former captains
13 demons
81 lost souls
3 hell knights
1 baron of hell
8 arachnotrons
2 former commandos
2 pain elementals
6 revenants
1 mancubus
2 arch-viles
1 Spider Mastermind
-- History ---------------------------------------------------
On level 3 he entered the Vaults.
He came, he saw, but he left.
On level 5 he assembled a plasmatic shrapnel!
Then at last he found Dis!
He nuked level 8!
On level 8 he finally defeated the Mastermind.
-- Messages --------------------------------------------------
You need to taste blood!
Warning! Explosion in 8 seconds! You need to taste blood!
Warning! Explosion in 7 seconds! You need to taste blood!
You need to taste blood!
Warning! Explosion in 6 seconds! You need to taste blood!
Warning! Explosion in 5 seconds! You need to taste blood!
You need to taste blood!
Warning! Explosion in 4 seconds! You need to taste blood!
You need to taste blood!
Warning! Explosion in 3 seconds! You need to taste blood!
Warning! Explosion in 2 seconds! You need to taste blood!
You need to taste blood!
Warning! Explosion in 1 seconds! You need to taste blood! There is a lever
(woah!) here.
You pull the lever... You need to taste blood!
Congratulations! You defeated the Spider Mastermind! Press <Enter>...
-- General ---------------------------------------------------
755 brave souls have ventured into Phobos:
675 of those were killed.
1 didn't read the thermonuclear bomb manual.
And 65 couldn't handle the stress and committed a stupid suicide.
14 souls destroyed the Mastermind...
1 sacrificed itself for the good of mankind.
10 killed the bitch and survived.
3 showed that it can outsmart Hell itself.
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I've been playing this game on and off for like ten years (since I was in middle school), and have been steadily improving with time, but I've always avoided Nightmare! because I like to take my time and see that beautiful 100% at the end of the game. Yesterday though, I decided it was about damn time that I give it a shot, and what better way to do that than to mix it with a little overconfidence and shotgunnery? In truth, this run is the product of a shamelessly stolen strategy (thanks Icy!) and a lucky invulnerability and sniper pack, but it was a ton of fun anyway, and I think I've gotten dramatically better at the game in the process, whether the enemies are respawning or otherwise. For the record, this is on 0.9.9.7, as I haven't updated yet.