Okay, after a couple of failed HAs, I managed a run using the HR->HR->EE->EE->Int->Int strategy, and it works pretty damn well. Though, with the way that the AI runs toward the center of the map, the only levels that pose significant unknown threats are mazes and Maze of Rooms that have either tons of rooms or those dreaded long hallways. Ultimately, I can't say I was ever in any significant danger of timing out after Int2. It's definitely good enough for Platinum, I'll be testing it out on the Diamond for (what is hopefully) a more successful strategy.
Coincidentally, I chose a shotty build after Int anyway: getting super shotgun and assault shotgun simply make that too good to pass up. Maybe it's just me, but I had horrible luck (which is to say, no luck) trying to blow open walls with the Railgun. Maybe it was "fixed"...which is fine, the weapon was a bit too omnipotent that way. It certainly makes Mortuary a breeze.
Here's the mortem:
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DoomRL (v.0.9.9.1) roguelike post-mortem character dump
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Game Hunter, level 11 Arch-Vile Lt. General, defeated the Cyberdemon
on level 25 of the Phobos base.
He survived 70702 turns and scored 137201 points.
He played for 1 hour, 2 minutes and 8 seconds.
He didn't like it too rough.
He killed 541 out of 541 hellspawn. (100%)
This ass-kicking marine killed all of them!
He was an Angel of Red Alert!
-- Awards ----------------------------------------------------
Medal of Prejudice
UAC Star (bronze cluster)
Grim Reaper's Badge
Hell Champion Medal
-- Graveyard -------------------------------------------------
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-- Statistics ------------------------------------------------
Health 53/70 Experience 54296/11
ToHit Ranged +4 ToHit Melee +4 ToDmg Ranged +0 ToDmg Melee +0
-- Traits ----------------------------------------------------
Ironman (Level 2)
Hellrunner (Level 2)
Reloader (Level 2)
Eagle Eye (Level 2)
Intuition (Level 2)
Shottyman (Level 1)
HR->HR->EE->EE->Int->Int->Rel->Rel->SM->Iro->Iro->
-- Equipment -------------------------------------------------
[a] [ Armor ] Angelic Armor [1/7] (4%)
[b] [ Weapon ] modified Railgun (8d9) [15/40] (P1)
[c] [ Boots ] nothing
[d] [ Prepared ] modified super shotgun (9d4)x3 [2/2] (T1)
-- Inventory -------------------------------------------------
[a] modified assault shotgun (8d3) [6/6] (P1)
[b] modified BFG 9000 (10d8) [90/130] (B1)
[c] blue armor [2/2] (82%)
[d] shotgun shell (x50)
[e] shotgun shell (x50)
[f] shotgun shell (x50)
[g] shotgun shell (x50)
[h] shotgun shell (x50)
[i] shotgun shell (x2)
[j] power cell (x35)
[k] power cell (x50)
[l] power cell (x50)
[m] large med-pack
[n] large med-pack
[o] large med-pack
[p] large med-pack
[q] large med-pack
[r] large med-pack
[s] envirosuit pack
[t] thermonuclear bomb
-- Kills -----------------------------------------------------
79 former humans
72 former sergeants
26 former captains
87 imps
57 demons
84 lost souls
42 cacodemons
11 barons of hell
1 Cyberdemon
18 hell knights
38 arachnotrons
6 former commandos
2 pain elementals
10 arch-viles
4 mancubi
2 revenants
2 bruiser brothers
-- History ---------------------------------------------------
He started his journey on the surface of Phobos.
On level 2 he entered Hell's Arena.
He left the Arena as a champion!
On level 5 he stormed the Chained Court.
On level 10 he found Hell's Armory.
On level 10 he found the Railgun!
On level 14 he ventured into the Halls of Carnage.
On level 15 he encoutered the Phobos Hellgate.
On level 18 he ventured into the Spider's Lair.
He cleared the Lair, kickin' serious spider ass!
On level 22 he found the Revenant's Launcher!
On level 22 he was foolish enough to enter the Mortuary!
On level 22 he found the Angelic Armor!
He managed to clear the Mortuary from evil!
On level 23 he entered the Lava Pits.
He managed to clear the Lava Pits completely!
Then at last he found Phobos Arena!
On level 25 he finally defeated the Cyberdemon.
-- Messages --------------------------------------------------
The Cyberdemon reloads his rocket launcher.
You reload the Railgun with power cell.
Fire -- Choose target... The missile hits the Cyberdemon.
Fire -- Choose target... The missile hits the Cyberdemon. The Cyberdemon
hits you. The Cyberdemon hits you.
Fire -- Choose target... The missile hits the Cyberdemon. The Cyberdemon
hits you. Your Angelic Armor is damaged!
Fire -- Choose target... The missile hits the Cyberdemon. The Cyberdemon
hits you. The Cyberdemon hits you. Your Angelic Armor is damaged!
You use a large med-pack. You feel fully healed. The Cyberdemon hits you.
You start running!
The Cyberdemon fires! You dodge! You hear an explosion!
The Cyberdemon reloads his rocket launcher.
Fire -- Choose target... The missile hits the Cyberdemon. The Cyberdemon
dies. You feel relatively safe now. Congratulations! You defeated the
-- General ---------------------------------------------------
Before him 628 brave souls have ventured into Phobos:
517 of those were killed.
2 of those were killed by something unknown.
69 didn't read the thermonuclear bomb manual.
And 14 couldn't handle the stress and committed a stupid suicide.
Some rumours though, say that the Cyberdemon was killed already!
Is he immortal? 26 souls claim to have killed him...
4 sacrificed itself for the good of mankind.
20 killed the bastard and survived.
2 showed that it can outsmart hell itself.
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