Daredevil Diamond is in contention for being the easiest Diamond badge; if you do it "legit" (i.e. no kill farming), you just reset until you get a good level start that preferably has an Invuln or Berserk, or otherwise lets you safely camp, get some levels in after killing a bunch of enemies, and then you'll get 80% naturally as long as you go through most of the remaining floors instead of just stairdiving, with the option to skip any really nasty floors like an Arachnotron cave if you build up enough of a kill buffer. Or you do it the cheesy way where you get a strong start and then rush to the end, while finding yourself a safe respawn along the way to kill over and over until you ensure over 80% kills, whether a former you can repeatedly kill without retaliation and never running out of ammo or anything else if you did the Cathedral and got yourself an Artifact melee weapon. With the nature of AoOC, with its Hell starts that will be unsurvivable at low levels with little to no armor, even top players technically wouldn't be able to win this badge consistently, but with how fast attempts will go and not requiring that much luck to get, most competent players would win this badge without any serious time investment.
As such, I decided to go for 100% kills to make this Daredevil Diamond run a bit more interesting, thus I won't be able to skip out on any bad floor and my kill percent can't get fluffed up by respawns. I initially went a melee-focused Scout, but lost a first good run from getting chipped down, so decided to just go with good old Vampyre; since this isn't 0.9.9.8's outrageously broken Vampyre, I don't feel the guilt of using it even though it's still a strong contender for best build in the game. Now trying to go for Vampyre did make starts harder with the lack of the Scout's speed bonus and having to pick up a level of Badass instead of other much more useful traits, but it still doesn't take much to get a survivable first floor. Also having to use the free trait Vampyre on Brute 3 (that you're going to need to fight the Angel Of Death after only a single floor with a Combat Knife) instead of the much more useful Finesse made starts harder to survive as well. Making it past the first floor and getting your hands on that lovely Scythe from the Cathedral didn't guarantee safety either, especially as your medkits will likely be drained away and your armor will be battered or gone completely, but again it doesn't take that much attempts to get workable floors.
And indeed on only my fifth attempt I would get a run to Mortuary with 100% kills intact, where with an Invuln near the Mortuary and knowing I effectively had infinite health with Vampyre... I decided to go for the bragging rights of beating N! Mortuary in AoOC. Even with the Invuln though that let me take out a lot of enemies in the beginning, whether directly or through infighting, Vampyre in this game state was rather too slow to safely handle Mortuary without a BFG to do a big corpse disposal at the beginning, and so once the Invuln worn off, I started getting overwhelmed and my armor was getting destroyed fast. I was able to make it to the Nuclear BFG though without it getting destroyed, and then setup a safe corner (well about as safe as you can get in Mortuary) to slowly wait for the rest of the enemies to come while using some corpses left next to me to get health back whenever they respawned and repeatedly shooting out Nuclear BFG blasts whenever it was charged (I forgot how broken being able to shoot the BFG out of vision was before 0.9.9.8 prevented you from doing that). Eventually, slowly but surely I would finish Mortuary, but not without taking a huge beating (https://pbs.twimg.com/media/G7A8aWTWAAAXLW_?format=jpg&name=large). Floor 5 would give me a maze though that ended up ruining my freshly acquired Angelic Armor and other remaining armor supply, and then I got a floor 6 that should have been an easy small rooms level, but I got super careless and rushed a VMR group without any real armor that I could have just waited for... being reminded just how insufficient TaN is before its 0.10 buff as I got quickly evaporated away, after Berserker failed to proc from several Mancubi blasts (that extra starting 10 max HP of the Marine can really suck sometimes...)
I'll post the mortem of the failed run still though to keep record of the N! Mortuary 0.9.9.7 AoOC clear:
--------------------------------------------------------------
DoomRL (0.9.9.7) roguelike post-mortem character dump
--------------------------------------------------------------
DAREDEVIL2EZ, level 10 Cyberdemon Chaos Major Marine,
rode a mancubus rocket on level 6 of Hell.
He survived 263998 turns and scored 207501 points.
He played for 58 minutes and 43 seconds.
He opposed the Nightmare!
He killed 732 out of 749 hellspawn. (97%)
He held his right to remain violent.
He was an Angel of Overconfidence!
-- Special levels --------------------------------------------
Levels generated : 4
Levels visited : 2
Levels completed : 2
-- Awards ----------------------------------------------------
UAC Star (silver cluster)
Grim Reaper's Badge
-- Graveyard -------------------------------------------------
###########################################################
###......B.......R../.........#...0...+....+.0.....+....+..
###...............R.#...=.....#...V...#....#########....###
###..V.....|........#...=...../.......#....+.......+....#..
###########/#########.==.=....#.0..\..#....#.=.....#....#..
###.R.....V.........+.===.....#..^....+...}#==.....#....+..
###=V=/####/####B######=/####V####+#######+#===+#=##+######
###====M/.........../....;..R.........+....#...==..#....+..
##===.=..../#########.................#....#...0.[.#....#..
##=====.../M........#V................#....+.......+..|.#..
###===..X...#.......#.....R...........#....#########....#..
###.........#.......+.................+....+.......++...+..
######+#....####+#######/####+####+####=##+####+####+######
###.......#.#..>...>+....#.......#..../=.|....#B#.......+"^
#########.#.#.......#....#.......#....==......#.#.......#..
###.....#./.+.......#....+.......+..^.#=....../.+...===.#..
###.....#.#+#########.B..#########....#=......#/###===#==..
###.....+0#.....+...+.^..+.......+..../.......#......0..+=.
###########################################################
###########################################################
-- Statistics ------------------------------------------------
Health 0/60 Experience 45666/10
ToHit Ranged +0 ToHit Melee +6 ToDmg Ranged +0 ToDmg Melee +9
-- Traits ----------------------------------------------------
Class : Marine
Finesse (Level 2)
Tough as nails (Level 2)
Brute (Level 3)
Berserker (Level 1)
Badass (Level 1)
Vampyre (Level 1)
Bru->Bru->Ber->Bru->Bad->MVm->TaN->Fin->Fin->TaN->
-- Equipment -------------------------------------------------
[a] [ Armor ] Angelic Armor [0/7] (0%)
[b] [ Weapon ] Azrael's Scythe (9d9)
[c] [ Boots ] plasteel boots [2/2] (87%) (A)
[d] [ Prepared ] nuclear BFG 9000 (8d6) [40/40]
-- Inventory -------------------------------------------------
[a] rocket launcher (6d6) [1/1]
[b] assault shotgun (7d3) [6/6] (T1)
[c] blue armor [1/2] (28%)
[d] red armor [1/6] (16%) (P)
[e] chainsaw (4d6)
[f] shotgun shell (x50)
[g] shotgun shell (x50)
[h] shotgun shell (x50)
[i] shotgun shell (x16)
[j] shotgun shell (x50)
[k] shotgun shell (x50)
[l] shotgun shell (x50)
[m] rocket (x10)
[n] rocket (x8)
[o] rocket (x10)
[p] rocket (x10)
[q] rocket (x10)
[r] small med-pack
[s] large med-pack
[t] envirosuit pack
[u] agility mod pack
[v] shell box (x25)
-- Resistances -----------------------------------------------
Acid - internal 0% torso 0% feet 50%
Fire - internal 0% torso 0% feet 25%
-- Kills -----------------------------------------------------
20 former humans
40 former sergeants
37 former captains
58 imps
53 demons
220 lost souls
57 cacodemons
26 hell knights
37 barons of hell
37 arachnotrons
24 former commandos
24 pain elementals
49 revenants
30 mancubi
19 arch-viles
1 Angel of Death
-- History ---------------------------------------------------
On level 1 he invaded the Unholy Cathedral!
On level 1 he found the Azrael's Scythe!
He then destroyed the Unholy Cathedral!
On level 4 he was foolish enough to enter the Mortuary!
On level 4 he found the Angelic Armor!
He managed to clear the Mortuary from evil!
On level 6 he finally rode a mancubus rocket.
-- Messages --------------------------------------------------
There are stairs leading to Mt. Erebus here.
You close the door.
You open the door.
You open the door.
You close the door.
You open the door.
You close the door.
You open the door.
You close the door.
You hit the revenant. The revenant dies.
There is rocket (x3) lying here.
You found 3 of rocket. Boom! Boom! You are hit!
Boom! Boom!
The arch-vile raises his arms! You dodge! The barrel explodes! The missile
hits the revenant. The missile hits the revenant. Boom! You are hit! The
revenant dies. You die!... Press <Enter>...
-- General ---------------------------------------------------
242 brave souls have ventured into Phobos:
73 of those were killed.
1 of those was killed by something unknown.
91 didn't read the thermonuclear bomb manual.
And 6 couldn't handle the stress and committed a stupid suicide.
71 souls destroyed the Mastermind...
6 sacrificed itself for the good of mankind.
35 killed the bitch and survived.
30 showed that it can outsmart Hell itself.
--------------------------------------------------------------
After that total throw though, it wouldn't take long to get another good run going, with a floor 1 that had a river that allowed me to safely pick off most of the enemies and a handy Medical Armor for more melee res against the AoD, which when combined with an Invuln near the Cathedral stairs, allowed me to exit the Cathedral with my medkits intact. Then on Hell 4, I got an Arachnotron cave that could be very deadly to 100%, but I was able to manage it, and then that floor blessed me with a Nano mod, so I could build a Powered Red Armor to really help with the armor problem and Vampyre's speed problem. It also had an Invuln near Limbo's stairs, the only thing I was missing was a rocket launcher at this point but I decided to go for it again, and the Invuln would last long enough for me even without rocket jumping to get to the Nuclear BFG. After that it was just abusing Limbo's stairs being easily campable as I killed each enemy that came up to me, popping out occasionally to shoot out Nuclear BFG blasts, until I whittled them down to the last few dozen enemies and then just sought them out (also did a couple Whispers of Death, partially to weaken them but more importantly to ensure Berserker would trigger more reliably without the extra max HP after losing the prior run from that). Not too long after I would finish off Limbo, and though I still took a beating, it was quite a bit less than I took in the prior Mortuary run (https://pbs.twimg.com/media/G7A8cfIXQAII9Yc?format=jpg&name=large). With Powered Red Armor, the Scythe, a bunch of medkits, and finding a Rocket Launcher shortly into floor 5, the rest of the run was a cinch, completing Daredevil Diamond with 100% kills and with a Grim Reaper's Badge you rarely if ever see in N! AoOC mortems. Altogether I had six killed runs before this one, and about another half dozen I Q+Y'd on, but this still took me a lot less time than doing a standard 100% N! run would have, even after spending nearly an hour cumulatively on those Mortuary and Limbo clears.
Now for the mortem:
--------------------------------------------------------------
DoomRL (0.9.9.7) roguelike post-mortem character dump
--------------------------------------------------------------
DAREDEVIL2EZ, level 13 Cyberdemon Chaos Major Marine,
defeated the Mastermind at the Hell Fortress.
He survived 292997 turns and scored 479527 points.
He played for 1 hour, 8 minutes and 52 seconds.
He opposed the Nightmare!
He killed 622 out of 622 hellspawn. (100%)
This ass-kicking marine killed all of them!
He was an Angel of Overconfidence!
-- Special levels --------------------------------------------
Levels generated : 4
Levels visited : 3
Levels completed : 3
-- Awards ----------------------------------------------------
Medal of Prejudice
UAC Star (bronze cluster)
Aurora Medallion
Grim Reaper's Badge
Daredevil Diamond Badge
-- Graveyard -------------------------------------------------
###########################################################
..........................................................#
..........................................................#
..........................................................#
..........................................................#
..........................................................#
..........................................................#
..........................................................#
..........................................................#
..........................................................#
.......................................................X}.#
........................................................||#
..........................................................#
..........................................................#
..........................................................#
..........................................................#
..........................................................#
..........................................................#
..........................................................#
###########################################################
-- Statistics ------------------------------------------------
Health 100/50 Experience 74228/13
ToHit Ranged +0 ToHit Melee +8 ToDmg Ranged +0 ToDmg Melee +12
-- Traits ----------------------------------------------------
Class : Marine
Finesse (Level 3)
Tough as nails (Level 2)
Brute (Level 4)
Juggler (Level 1)
Berserker (Level 1)
Badass (Level 1)
Vampyre (Level 1)
Bru->Bru->Ber->Bru->Bad->MVm->Fin->Fin->Jug->TaN->TaN->Fin->Bru->
-- Equipment -------------------------------------------------
[a] [ Armor ] powered red armor [5/5] (99%)
[b] [ Weapon ] Azrael's Scythe (9d9)
[c] [ Boots ] Nyarlaptotep's Boots [6/6] (100%)
[d] [ Prepared ] shell box (x70)
-- Inventory -------------------------------------------------
[a] rocket launcher (6d6) [0/1] (B1)
[b] assault shotgun (8d3) [6/6] (P1)
[c] napalm launcher (7d7) [1/1] (T1)
[d] red armor [4/4] (100%)
[e] Angelic Armor [7/7] (73%)
[f] shotgun shell (x50)
[g] shotgun shell (x50)
[h] rocket (x10)
[i] rocket (x10)
[j] rocket
[k] small med-pack
[l] small med-pack
[m] large med-pack
[n] large med-pack
[o] large med-pack
[p] large med-pack
[q] large med-pack
[r] envirosuit pack
[s] power mod pack
[t] bulk mod pack
-- Resistances -----------------------------------------------
Bullet - internal 60% torso 60% feet 60%
Melee - internal 60% torso 85% feet 60%
Shrapnel - internal 60% torso 60% feet 60%
Acid - internal 60% torso 60% feet 90%
Fire - internal 60% torso 95% feet 90%
Plasma - internal 60% torso 60% feet 60%
-- Kills -----------------------------------------------------
4 former humans
26 former sergeants
6 former captains
27 imps
29 demons
132 lost souls
21 cacodemons
17 hell knights
51 barons of hell
101 arachnotrons
6 former commandos
12 pain elementals
51 revenants
44 mancubi
29 arch-viles
14 nightmare imps
16 nightmare cacodemons
2 nightmare demons
30 nightmare arachnotrons
1 lava elemental
1 Angel of Death
1 Spider Mastermind
1 John Carmack
-- History ---------------------------------------------------
Level 1 was a hard nut to crack!
On level 1 he invaded the Unholy Cathedral!
On level 1 he found the Azrael's Scythe!
He then destroyed the Unholy Cathedral!
On level 2 he found the Railgun!
On level 4 he assembled a power armor!
On level 4 he was foolish enough to enter Limbo!
On level 4 he found the Angelic Armor!
He managed to clear Limbo from evil!
On level 6 he entered the Lava Pits.
On level 6 he found the Nyarlaptotep's Boots!
He managed to clear the Lava Pits completely!
Then at last he found Dis!
He overloaded a nuclear BFG 9000 on level 8!
He defeated the Mastermind and found the TRUE EVIL!
Then finally in Hell itself, he killed the final EVIL.
-- Messages --------------------------------------------------
You need to taste blood!
You need to taste blood!
You need to taste blood!
You need to taste blood!
Fire -- Choose target...
You see : floor
Carmack raises his hands and summons hellspawn! You need to taste blood!
Nothing to swap!
Use scroll to choose weapon, left button to wield, right to cancel... You
wear/wield : a Azrael's Scythe (9d9)
You hit John Carmack. You need to taste blood!
You hit John Carmack. You're going berserk! You need to taste blood!
You hit John Carmack. You need to taste blood!
You hit John Carmack. You're going berserk! You need to taste blood!
You hit John Carmack. John Carmack dies. Congratulations! You defeated John
Carmack! Press <Enter>...
-- General ---------------------------------------------------
244 brave souls have ventured into Phobos:
74 of those were killed.
1 of those was killed by something unknown.
91 didn't read the thermonuclear bomb manual.
And 6 couldn't handle the stress and committed a stupid suicide.
72 souls destroyed the Mastermind...
6 sacrificed itself for the good of mankind.
36 killed the bitch and survived.
30 showed that it can outsmart Hell itself.
--------------------------------------------------------------