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Weapon & Equipment Information
General Details
Name:  Chameleon LPS
Type (Category):  Equipment (Other)
Reference:  Tactical Operations: Advanced Units & Equipment (p. 112)

Description:
Created by the first Star League, the so-called Chameleon light polarization shield uses a primitive mimetic system to help mask the ’Mech on which it is installed from visual observation at long and extreme range. While it does not render the unit truly invisible, the effect does blur its outline, making the ’Mech harder to identify or attack. Seen historically as the crown jewel in the design of the Exterminator BattleMech, it is commonly misbelieved that all Exterminator models sported the LPS system, when in fact only a fraction of those units were so equipped—virtually all of which were lost to the Succession Wars.

Game Rules:
A player may turn the light polarization shield on or off during the End Phase of any turn (or start the game with the system already engaged). While the shield is active, the ’Mech is more difficult to attack at long distance. Medium-range attacks receive an additional +1 to-hit modifier, and Long- or Extreme-range attacks receive an additional +2 to-hit modifier. Unlike most other stealth systems, these modifiers apply even if the attacking unit is infantry. A hit to any of the shield’s critical slots (or the destruction of any hit location containing one) destroys the entire system.

While active, the light polarization shield generates 6 points of heat. If used in conjunction with an active Null-Signature System, all modifiers are cumulative. Like all Stealth systems, if a unit is part of a C3 network and activates the LPS, the unit is disconnected from the C3 network until the LPS is turned off; the unit is automatically connected again at the start of the turn following the End Phase when the LPS is turned off.

An LPS still generates its heat but provides no to-hit modifiers in any turn that infantry are carried using the mechanized battle armor rules.
Unit Type Availability
BattleMechs
Inner Sphere Data (BattleMechs)
Prototype Date:  2630
Production Date:  
Extinction Date:  2790
Recovery Date:  3099

BattleMech Specific Construction Rules
May be mounted on Inner Sphere units in accordance with the following construction rules:
 Requires one critical slot to be allocated in each of the Arms, Legs, and Side Torsos
 Not allowed if Land-Air (Bimodal), or Land-Air (Standard) is selected for the unit's Chassis
 May not be pod-mounted when used on an Omni configuration
 Not allowed if Fission, Fuel Cell, Internal Combustion, Primitive Fission, Primitive Fuel Cell, or Primitive Internal Combustion is selected for the unit's Engine Type
 Not allowed if Stealth is selected for the unit's Armor Type
 Not allowed in conjunction with Void-Signature System
 May mount up to one per unit

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
– (–)
– (–)
E
F-X-X-F
600,000
0
6*
* See rules for this equipment

RULES LEVEL PROGRESSION TABLE
Start Year
End Year
Rules Level
2630
2789
Experimental
3099
Experimental

ALPHA STRIKE WEAPON CONVERSION TABLE
Heat
Short
Medium
Long
Extreme
Special Abilities
Stealth

Special Unit Abilities
The special unit abilities described here are intended for use with the Alpha Strike rule system:
 Stealth (STL)
Though various stealth systems exist in the BattleTech universe, the majority are similar enough in function that Alpha Strike does not distinguish between them. These systems make a target more difficult to hit with weapon attacks (but not physical attacks), based on the range and unit type being targeted.

For attacks made against non-infantry targets with the STL special, apply an additional +1 Target Number modifier to attacks at Medium range, and an additional +2 modifier at Long range (or greater).

For attacks made against battle armor targets with the STL special, apply an additional +1 Target Number modifier at Short and Medium range, and an additional +2 modifier at Long range (or greater).

A non-infantry unit with STL is (intentionally) blocking its own emissions with its ECM. Any non-infantry Stealth unit is affected as if in an enemy ECM field, and cannot affect other units with its own ECM. However, if using the ECM/ECCM optional rules, a unit with AECM may still generate a single field (ECCM only) while the Stealth is on.

Toggling Stealth: To avoid being affected by its own ECM, a non-infantry unit with STL may toggle off its Stealth special ability in the End Phase. Place a mark above or through the Stealth special ability to note that it is off. It may be toggled back on in any subsequent End Phase.

MegaMek Output → Critical Slot:  Chameleon Light Polarization Shield
Record Sheet Output → Critical Slot:  Chameleon LPS