AMS: Anti-Missile System. A defensive system which shoots down incoming missiles as they approach the mech on which the system is installed. Provides some extra defense against SRM and LRM attacks.
AOE: Area of Effect
C3: The acronym itself stands for Command, Control, and Communications. However, in BattleTech terms it is the name of a computer system which aids this function by allowing mechs equipped with C3 computers to communicate additional information with one another.
CASE: Cellular Ammunition Storage Equipment. A storage compartment for ammunition that protects the mech in the advent of a direct hit on the ammunition. Without CASE an ammunition hit can be devastating to the mech.
DFA: Death From Above. An form of attack whereby one mech uses its jump jets to jump up and then land on top of another mech. Can be a devastating form of attack if the mech performing the attack is of a heavier weight class than the mech on the receiving end.
ECM: Electronic Countermeasures.
HOTAS: Hands on Throttle and Stick. Advanced game controllers that include a joystick for the right hand and a throttle for the left hand, and often additional bells and whistles.
HUD: Heads-up Display
IDF: Indirect Fire
LOSD: Line of Sight/Detection
LP: Loyalty Points. See the section titled “Loyalty and Rank” for a complete explanation.
LRM: Long Range Missiles
MWO: MechWarrior: Online
MXP: Mech Experience Points. See the section titled “Experience” for a complete explanation.
PGI: Piranha Games, Inc.
PPC: Particle Projection Cannon
SRM: Short Range Missiles
TAG: Target Acquisition Gear. Equipped in place of a weapon, this is a targeting laser that enables a MechWarrior to paint targets for attack by the Artemis IV artillery system.
UAV Unmanned Aerial Vehicle
XP: Experience Points
MWO Primer Contents[edit source]