Interstellar Operations: Alternate Eras - 17 January 2023 (v3.01)

[Xotl]

NOTE: This thread is for the first volume of the revised, two-volume edition of Interstellar Operations.  We are no longer collecting errata for the original single-volume version.


This thread is for all issues and problems with Interstellar Operations: Alternate Eras.

Product Link: https://store.catalystgamelabs.com/products/battletech-interstellar-operations-alternate-eras

Current errata version is 3.01, and can be found here:
https://bg.battletech.com/errata/

Please remember to follow the errata report template when reporting issues.  Thanks.


Developer-Level Errata:
In case of any contradiction, developer-level errata takes precedence over the current errata document.

None.

[Ardent Fury]

PDF, Page 81, Anti-Penetrative Ablation Armor Game Rules:

"ABA Armor applies an additional –2 roll modifier to the
critical hit check for all attacks made by weapons with armor-piercing
abilities, including armor-piercing autocannon ammo, armor-piercing
mortars, tandem-charge missiles, and tasers of all kinds."

Error: Armor piercing mortars do not have an Armor piercing critical hit effect.

Correction: Delete Armor piercing mortar reference.

[Hammer]

Developer-Level Errata:

Pg 190 Alternate Era Weapons and Equipment Battle Value Table.

Please replace Dead Fire BV Values with the following:

Special Munitions: Dead-Fire LRM 5 — 9

Special Munitions: Dead-Fire LRM 10 — 17

Special Munitions: Dead-Fire LRM 15 — 26

Special Munitions: Dead-Fire LRM 20 — 35

Special Munitions: Dead-Fire SRM 2 — 4

Special Munitions: Dead-Fire SRM 4 — 7

Special Munitions: Dead-Fire SRM 6 — 10

Special Munitions: Dead-Fire MML 3 (SRM) — 6

Special Munitions: Dead-Fire MML 3 (LRM) — 6

Special Munitions: Dead-Fire MML 5 (SRM) — 8

Special Munitions: Dead-Fire MML 5 (LRM) — 9

Special Munitions: Dead-Fire MML 7 (SRM) — 11

Special Munitions: Dead-Fire MML 7 (LRM) — 12

Special Munitions: Dead-Fire MML 9 (SRM) — 15

Special Munitions: Dead-Fire MML 9 (LRM) — 17

[ShroudedSciuridae]

IO:AE, PDF, 2nd Corrected Printing

Universal Advancement Table Issues:
- pp. 29-57,  Multiple IO references
  Change to IO:AE references
- pp. 29&30, Primitive Aerospace Fighter Armor & Primitive Armor (Small Craft and Large Aerospace Craft), both Prototype ES.
  Change Prototype to ~2200 (TA) or ~2100 (TA), bringing them in line with p. 42 Structural Components and others.
  Also change Primitive Aerospace Fighter Armor Production to ~2300 (TA) as TH did not exist yet.
- p. 30, Ablative/Flak, Concealed, Prototype ~2390 (TH) Production 2300 (TH) Common 2305
  Change to ~2390 (TH), 2395 (TH), and 2340, putting this 90 years after Ablative/Flak, Standard benchmarks
- p. 42, JumpShips, Prototype ~2100 (—)
  Change to ~2100 (TA)
- p. 44 Exoskeleton, Prototype ~2100 (—)
  Change to ~2100 (TA)
- p. 45 Primitive JumpShips, Prototype ~2100 (—)
  Change to ~2100 (TA)
p. 48, Whip (Neural Lash), Prototype ~2300 (pDC)
  Change to ~2300 (DC)
- p. 49, Laser Rifle (Marx XX), Prototype ~2685 (TH) Production 2670 (TH)
  Change to Prototype ~2665 (TH), TH typically moved from Prototype to Production in five years.
- p. 57, Key of Terms, references to TO and IO
  Change to TO:AUE and IO:AE as appropriate

[Hammer]

Dev-Level Errata

LAM Construction PG 108

Chassis Restrictions.
LAM's require lower arm actuators and they cannot be removed during construction.

[Alfaryn]

2021 Second corrected printing, print

pp. 221, 223

Right margins of these pages list chapters from the old 2016 Interstellar Operations book, not the Interstellar Operations: Alternate Eras.

[Bandit Queen]

Interstellar Operations, AE: 2022 Edition


EXPANDED PROTOMECH CONSTRUCTION RULES, page 94:

This lists the rules for constructing Advanced ProtoMechs such as Quads, Gliders, and Ultraheavies.  However, the blank record sheets for these designs were not included in this edition.  These rules were originally found in The Wars of Reaving: Supplemental, and pages 89 and 90 have the blank record sheets.  These two sheets need to be copy-and-pasted into the back of Interstellar Operations, as players need them to use the advanced construction rules.

[ShroudedSciuridae]

p. 16

Late Succession Wars Sub-Era (2901-3049)
Issue: missing Aurigan Coalition/Directorate/Restoration
Correction: Add relevant dates

p. 45
Minefield Ordinance (Active, Command Detonated, Standard, Vibrabomb)
Issue: ATOW 3rd p. 278 lists completely different Tech Level and Availability for all four mine types. This is especially pronounced with Active Mines moving from a 3058 invention to Early Spaceflight. Checking TO:AUE pp. 176-179 reveals even more contradictory information.
Correction: Resolve the discrepancy in whichever product

p. 47
Vibro-Mace, Tech Level E
Issue: ATOW 3rd p. 264 lists this as Tech Level D
Correction: Resolve the discrepancy in whichever product

p. 48
Issue: Pole Arm listed twice. I believe "Staff (Nunchaku/Pole Arm)" is the correct entry as Availability lines up with Pole Arm & Nunchaku ATOW (3rd) entries, p. 261
Correction: Change Staff (Basic/Pole Arm) to Staff (Basic)

p. 49
Laser Pistol (Sunbeam Nova), Tech Level D
Issue: ATOW 3rd p. 267 lists this as Tech Level E
Correction: Resolve the discrepancy in whichever product

p. 49
Pistol (Hold-Out), Tech Level D
Issue: ATOW 3rd p. 265 lists this as Tech Level B
Correction: Change Tech Level to B as this is a Pre-Spaceflight weapon

P. 49
Pistol (Spitball Gas Weapon), Availability XXCC
Issue: ATOW 3rd p. 269 lists this as EDC
Correction: Resolve the discrepancy in whichever product. Given the more detailed dates in IO:AE I'm inclined to believe XXCC is correct

p. 49
Revolver, Tech Level B & Revolver (Magnum), Tech Level C
Issue: ATOW 3rd p. 265 lists this as Tech Level C
Correction: Change both to Tech Level to B in both products as this is a Pre-Spaceflight weapon. Also a formatting error in ATOW so I'll submit this one on that thread as well.

p. 49
Tranq Gun, Tech Level A
Issue: ATOW 3rd p. 269 lists this as Tech Level C
Correction: Resolve the discrepancy in whichever product

p. 49
Laser Rifle (Federated-Barrett M61A), Tech Level D
Issue: ATOW 3rd p. 267 lists this as Tech Level E
Correction: Resolve the discrepancy in whichever product

p. 50
Needler Rifle (M&G Flechette), Availability CCCB
Issue: ATOW 3rd p. 268 lists this as CBC
Correction: Resolve the discrepancy in whichever product

P. 51
AA Weapon (Mk. 1 Light AA), Availability EFDD & AA Weapon (Mk. 2 Man-Portable AA), Availability EFDD
Issue: ATOW 3rd p. 274 lists these as EFD and FXD respectively.
Correction: Resolve the discrepancy in whichever product. Based on the extinction dates an X is appropriate during the Succession Wars. Perhaps EXDD and FXDD respectively?

p. 51
Flamer (Heavy), Availability BBBB
Issue: ATOW 3rd p. 275 lists this as ABB
Correction: Resolve the discrepancy in whichever product

p. 51
Mortar (Heavy) and Mortar (Light), Availability CCCC
Issue: ATOW 3rd p. 273 lists these as AAA
Correction: Resolve the discrepancy in whichever product

p. 51
Particle Cannon (Semi-Portable), Tech E, Availability DEDC
Issue: ATOW 3rd p. 275 lists this as Tech D, Availability CFD
Correction: Resolve the discrepancy in whichever product

p. 51
Particle Cannon (Support), Tech E, Availability CDCD
Issue: ATOW 3rd p. 275 lists this as Tech D, Availability CFC
Correction: Resolve the discrepancy in whichever product

p. 51
Recoilless Rifle (Heavy), (Medium), (Light), Availability AAAA
Issue: ATOW 3rd p. 274 lists these as BBA
Correction: Resolve the discrepancy in whichever product

p. 51
Rocket Launcher (V-LAW), Availability AAAA
Issue: ATOW 3rd p. 274 lists this as ABB
Correction: Resolve the discrepancy in whichever product

p. 51
SRM Launcher (Standard, Two Shot), (Heavy, One-Shot), (Light, One-Shot), Availability CCDC
Issue: ATOW 3rd p. 274 lists these as BDD, CDD, and CCC respectively.
Correction: Resolve the discrepancy in whichever product

p. 51
Support Laser, Availability BCDC
Issue: ATOW 3rd p. 275 lists this as CDD
Correction: Resolve the discrepancy in whichever product

p. 51
Support Laser (ER, Clan), Availability XEDC
Issue: ATOW 3rd p. 275 lists this as XXD
Correction: Resolve the discrepancy in whichever product

p. 52
Support Laser (ER Heavy, Inner Sphere), Availability XXED
Issue: ATOW 3rd p. 275 lists this as XED
Correction: Resolve the discrepancy in whichever product

p. 52
Support Laser (Heavy), Availability EEDC
Issue: ATOW 3rd p. 275 lists this as DFD
Correction: Resolve the discrepancy in whichever product

p. 52
Support Pulse Laser, Availability DEDC
Issue: ATOW 3rd p. 275 lists this as DFD
Correction: Resolve the discrepancy in whichever product

p. 52
Support Pulse Laser (Heavy), Availability EFED
Issue: ATOW 3rd p. 275 lists this as DFE
Correction: Resolve the discrepancy in whichever product

That's the last of them! ...at least for weapons.  Armor comes later.

[Bandit Queen]

Interstellar Operations, AE: 2022 Edition


ADDITIONAL ALTERNATE ERA WEAPONS AND EQUIPMENT table, page 213:

The ammo costs for the Improved ATM 3/6/9/12 are all listed per shot, instead of per ton.  The values of 3,750/7,500/10,715/15,000 should all be replaced with 75,000.  That is the cost of iATM ammo per ton.

[ShroudedSciuridae]

Page 32, Ultra AC/20 [IS]

"Prototype ~3057 (FW), Production 3060 (FW/LC)"
Issue: I can't find anything substantiating FWL research into the Ultra AC/20, but TRO 3060 does tell us how and when LC developed one. The Blitzkrieg (p. 94) says an intact Clan Ultra AC/20 was recovered following the 3058 Battle of Coventry, and allowed reverse engineering. This was aided by "recent technological exchanges with the Free Worlds League," in the form of the Ultra AC/2 & AC/10 they put into production in 3058 following GUERRERO (FM:FWL pp. 138-139, 141; TRO 3060 p. 30) and is likely the source of the erroneous attribution to FWL. The Blitzkrieg entry goes on to say it was first mounted on the Demolisher II. The Demolisher II has a MUL Date Introduced of 3059. FM:LA also reinforces this timeline putting the Ultra AC/20 debut at 3060 (p. 146).

Correction: Change Prototype to 3059 (LC), allowing at least months to transport the ClanTech from Coventry to Hesperus and unlock its secrets. Change Production to 3060 (LC). Possibly update Demolisher II in MUL for a 3060 Date Introduced.

[Alexander Knight]

Page 212, iATM Heat values:

Issue:  Heat values for the iATM 6, 9, and 12 are all listed as 2 heat.  They should be 4, 6, and 8.

[Xotl]

The inaugural IO:AE errata has been posted.  Due to the time between preparation of the new book and arrival of this errata, not all entries reported above were collected.  However, they will checked again for any future printings.


EDIT: Quick 3.01 fix uploaded to catch a couple of entries above that were in fact included.

[mordel]

p. 186, Prototype ER Large Laser:

Change the value used when computing the unit's heat efficiency from 13 to 15 points.

Rationale:

The current value of 13 is derived from an inconsistent formula used for similar prototype weapons. For example:

Prototype Medium Pulse Laser: In TW play, this weapon generates 4+1d6 heat; The heat used during BV calculations is 7 (4 + an average of 3)
Prototype Large Pulse Laser: In TW play, this weapon generates 10+1d6; The heat used during BV calculations is 13 (10 + an average of 3)
Prototype ER Large Laser (currently worded): In TW play, this weapon generates 12+1d6; The heat used during BV calculations is 13 (12 + an average of 1(?))