Viewing Weapons & Equipment
Weapon & Equipment Information
General Details
Name:  LRM 20 (I-OS)
Type (Category):  Weapon (Missile)
Reference:  TechManual (p. 229)

Description:
Description not provided

Game Rules:
Game rules not provided
Unit Type Availability
BattleMechsIndustrialMechsCombat Vehicles
Inner Sphere Data (BattleMechs)
Prototype Date:  
Production Date:  3056
Extinction Date:  
Recovery Date:  

BattleMech Specific Construction Rules
May be mounted on Inner Sphere units in accordance with the following construction rules:
 May be mounted with an Artemis Fire Control System

WEAPONS AND EQUIPMENT COMBAT AND CONSTRUCTION TABLE
Heat
Damage (Aero)
Range (Aero)
Rating
Availability
Cost (C-bills)
Weight (Tons)
Criticals
Battle Value
Direct-Fire
Explosive
6
1/Msl (12)
6/7/14/21 (Long)
C
200,000
9.500
5
36.000

RULES LEVEL PROGRESSION TABLE
Start Year
End Year
Rules Level
3056
~3080
Advanced
~3081
Standard

ALPHA STRIKE WEAPON CONVERSION TABLE
Heat
Short
Medium
Long
Extreme
Special Abilities
6
0.06/0.08 *
0.12/0.16 *
0.12/0.16 *
Indirect Fire, Long-Range Missiles
* The value left of the slash indicates the weapon's damage when employed without any Artemis FCS; the value right of the slash indicates the weapon's damage when employed with an Artemis IV FCS

Special Unit Abilities
The special unit abilities described here are intended for use with the Alpha Strike rule system:
 Indirect Fire (IF)
The Indirect Fire special ability allows a unit to attack a target without having a valid LOS to it via arcing missiles over the intervening obstacles, similar to how mortars and artillery work. This attack requires a friendly unit with a valid LOS to act as a spotter. The numerical rating for this ability indicates the amount of damage a successful indirect attack will deliver. Because they attack when other weapons cannot, damage from an indirect attack applies in place of the unit’s normal weapon attack.

Units with the IF and LRM specials may make use of all alternate munitions and Special Pilot Abilities available to the LRM special when making indirect fire attacks, but are limited to using the LRM special ability’s long range value if it is lower than the IF special ability value.

 Long-Range Missiles (LRM)
This unit mounts a significant number of long-range missile launchers and may fire them together as an alternative weapon attack instead of a standard weapon attack. This ability enables the unit to use alternate LRM ammo for modified effects.

MegaMek Output → Weapon List:  LRM 20 (I-OS)
MegaMek Output → Critical Slot:  LRM 20 (I-OS)
Record Sheet Output → Critical Slot:  LRM 20 (I-OS)
Clan Data (BattleMechs)
Prototype Date:  
Production Date:  3058
Extinction Date:  
Recovery Date:  

BattleMech Specific Construction Rules
May be mounted on Clan units in accordance with the following construction rules:
 May be mounted with an Artemis Fire Control System

WEAPONS AND EQUIPMENT COMBAT AND CONSTRUCTION TABLE
Heat
Damage (Aero)
Range (Aero)
Rating
Availability
Cost (C-bills)
Weight (Tons)
Criticals
Battle Value
Direct-Fire
Explosive
6
1/Msl (12)
–/7/14/21 (Long)
F
200,000
4.500
4
44.000

RULES LEVEL PROGRESSION TABLE
Start Year
End Year
Rules Level
3058
~3080
Advanced
~3081
Standard

ALPHA STRIKE WEAPON CONVERSION TABLE
Heat
Short
Medium
Long
Extreme
Special Abilities
6
0.12/0.16/0.168 *
0.12/0.16/0.168 *
0.12/0.16/0.168 *
Indirect Fire, Long-Range Missiles
* The first value indicates the weapon's damage when employed without any Artemis FCS; the second value indicates the weapon's damage when employed with an Artemis IV FCS; the third value indicates the weapon's damage when used with the Artemis V FCS.

Special Unit Abilities
The special unit abilities described here are intended for use with the Alpha Strike rule system:
 Indirect Fire (IF)
The Indirect Fire special ability allows a unit to attack a target without having a valid LOS to it via arcing missiles over the intervening obstacles, similar to how mortars and artillery work. This attack requires a friendly unit with a valid LOS to act as a spotter. The numerical rating for this ability indicates the amount of damage a successful indirect attack will deliver. Because they attack when other weapons cannot, damage from an indirect attack applies in place of the unit’s normal weapon attack.

Units with the IF and LRM specials may make use of all alternate munitions and Special Pilot Abilities available to the LRM special when making indirect fire attacks, but are limited to using the LRM special ability’s long range value if it is lower than the IF special ability value.

 Long-Range Missiles (LRM)
This unit mounts a significant number of long-range missile launchers and may fire them together as an alternative weapon attack instead of a standard weapon attack. This ability enables the unit to use alternate LRM ammo for modified effects.

MegaMek Output → Weapon List:  LRM 20 (I-OS)
MegaMek Output → Critical Slot:  CLLRM20 (IOS)
Record Sheet Output → Critical Slot:  LRM 20 (I-OS)