I was looking to beat the Angel of Carnage for the first time (had many unsuccessful attempts, mostly problems with ammo attrition or running away when sighted by medusa), and decided to go with YOLO strategy: don't take Reloader as a Marine at all, instead invest early in Army Surplus and Whizkid L1 (for Autoloader), go through Callisto Rift to get poison immunity, and then build like a Survivor with Angry Motherfucker. Going this way (without Reloader), you have a low success rate early on due to exalted soldiers, but spare a lot of points for other things should you succeed.
Run began quite well, with Rift netting me a JS duramesh scout armor and JS marine helmet and allowing me to fully mod my rocket launcher (including setting up autocalibration at that guaranteed tech station), an AMP with "Carrier, Furious" - basically set for most of the game. (the armor was only ditched for necrotic at Dante L2, right before Inferno, and an AMP was swapped by the one that popped on Dante Inferno).
Interesting things happened on Europa, though. Because the terminal message at L2 tipped me about "micro launcher" on L6, and branch to Conamara spawned on L2, I had to pick that route. It's not exactly bad, but you miss cold immunity, and I often struggle with Cryomancer, so Padded perk goes in the sole duramesh's armor slot. I was praying to get Fire Essence and my prayers were answered, in fact the ammo pool allowed me to dare for one more immunity (I wanted to keep my helmet throughout the game, so Acid was good enough). Then, on the special level "Containment Area", two uber-items dropped: Calamity unique and Medusa's fang relic.
And those two defined the run from there on.
As you might guess, the challenge-defining aspect was broken: ammo management was not required that much, all tough enemies except bots die in one hit (and Survivor helps survives duel with bots), Calamity is also safe to use in close quarters (no splash).
I admit - I didn't use Angry Motherfucker most effectively, and instead abused medusa's fang effect to deal with tough enemies and level up Calamity to MAX as soon as possible (to deal with those robots). So with Ironman L3 and two health increases, I ended the run with 83 max hp. On Dante Inferno I think I wasn't hit even once (although memory can be faulty).
Possible BUG I encountered: Ancient died in one hit from Calamity, and I was missing only 1/3 of my health. I think medusa's fang erroneously failed to recognise him as a boss, treating him as a regular biological it instakills.
Vigilant, level 17 Marine,
defeated the Harbinger against all odds.
He survived for 16061 turns.
The run time was 2h 5m 8s.
World seed was 32597.
He scored 7539 points.
He was ULTRAVIOLENT!
He was an Angel of Carnage!
CALLISTO L3 - Volatile Storage
Callisto Hub -> Callisto Rift L1
Callisto Rift L1 - The Hunt
Callisto Rift L2 -> The Rift
The Rift - Cleared!
EUROPA L2 -> Conamara Chaos Biolabs L1
Conamara Chaos Biolabs L3 - The Hunt
Conamara Chaos Biolabs L3 -> Containment Area
Containment Area - Cleared!
Containment Area - found Calamity
IO L2 - Low Power
Io Nexus -> Mephitic Mines L1
Mephitic Mines L1 - Lockdown
Mephitic Mines L2 - The Hunt
Mephitic Mines L2 -> Noxious Hollow
Noxious Hollow - Cleared!
Dante Inferno - Cleared!
Dante Inferno - found Apocalypse
Dante Inferno - found Wavedancer
Dante Station L3 - The Hunt
Awards
Medal of Prejudice (+200)
* Won with 100% kills
CRI Star (silver cluster) (+100)
* 50+ kills without taking damage
Conqueror Ribbon (+200)
* Completed all encountered special levels
Rocket Silver Badge
* Complete Angel of Carnage (AoC)
Rocket Gold Badge
* Complete AoC on Hard
He killed 726 out of 726 enemies.
28 former grunts 4 military sentries
4 former CRI grunts 8 CalSec bots
8 former grenadiers 13 security bots
2 corrupted grenadiers 1 military bot
20 former soldiers 24 reavers
20 corrupted soldiers 17 cryoreavers
3 former CRI soldiers 43 toxic reavers
3 former sergeants 35 archreavers
6 corrupted sergeants 2 kerberi
7 former CRI sergeants 9 cyberi
1 CRI sergeant 10 cryoberi
16 former guards 7 toxiberi
2 CRI guards 19 medusae
1 former commando 14 archmedusae
5 corrupted commandoes 23 ravagers
2 former CRI commandoes 19 armored ravagers
2 former heavies 8 siege ravagers
2 corrupted heavies 19 plasma ravagers
5 fanatics 20 CRI marines
10 security drones 18 CRI bots
58 fiends 10 guardians
36 fire fiends 2 sentinels
35 ice fiends 6 warlocks
8 toxic fiends 7 archwarlocks
4 CalSec sentries 4 watchers
18 security sentries 5 cryowatchers
Traits
Ironman L3
Furious L1
Hellrunner L1
Tough as Nails L2
Army Surplus L2
Whizkid L1
Angry Motherfucker L3
Running L1
SURVIVOR L2
Trait order
Arm->Arm->Whk->Hr->TaN->MSV->AMf->AMf->
Fur->Run->Iro->Iro->Iro->MSV->AMf->TaN->
Equipment
Slot #1 : rocket launcher +P2B
* Hunter 8
* Focused
* Auto-calibrated
* Autoloader
Slot #2 : micro launcher B
* Autoloader
* Swap Harness
* Rocket rack
Slot #3 : Calamity
Body : necrotic armor
* Painkiller
* Necrotic
Head : JS marine helmet PB2A
* Health Monitor
* Critical 10
* Plated
* Durable
* JoviSec
Utility : AV3 utility AMP
* Metabolic boost
* Improved adrenaline
Relic : medusa's fang
* Kiss of Death
Permanents
Mephitic Taint
Relic Corruption
Acid Essence Attunement
Fire Essence Attunement
Inventory
energy cell (x100)
energy cell (x100)
energy cell (x100)
energy cell (x100)
energy cell (x30)
rocket (x10)
rocket (x10)
multitool (x4)
military stimpack
stimpack (x3)
large medkit