Improved Advanced Tactical Missile

Production information
Type Missile
Tech Base Clan[1]
Year Availability 3070[1]
Technical specifications
Heat Varies
Damage by ammunition type
Minimum Range 4 (or by ammo type)
Short Range 5 (or by ammo type)
Medium Range 10 (or by ammo type)
Long Range 15 (or by ammo type)[1]
Tons Varies
Critical Slots Varies by Model
Ammo Per Ton Varies by Model
Cost (unloaded) Varies by Model
Ammo Cost (per ton) Varies by Model
BV (1.0) Varies
BV (2.0) Varies


The Improved Advanced Tactical Missile system (iATM) was developed by The Society from 3054 to 3070. Like the Advanced Tactical Missile that it's based on, the iATM system uses a variety of ammunition types and includes an advanced targeting option. Unlike the ATM, the iATM uses a Streak SRM style guidance system to improve accuracy. Unlike the Streak system, however, the iATM can use indirect fire. The iATM can use the three ammunition types available to the standard ATM, but it also has two additional ammunition types that are restricted to itself (that is, these two ammunition types cannot be used by the ATM).[1]

These two special munitions are Improved Magnetic Pulse Ammunition and Improved Inferno Ammunition.


Like their progenitors, iATM's come in four types, each firing more missiles per salvo then the last:


This weapon type is only produced by the Clans, as such no Inner Sphere models exist.


  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 The Wars of Reaving, pp. 201-202, "Rules Annex - Improfed Advanced Tactical Missile (iATM)"