Advanced Tactical Missiles

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Advanced Tactical Missiles, or ATMs are a medium-long range weapon system with improved tracking compared to other missile weapons.

Overview

An Advanced Tactical Missile Launcher fires a powerful warhead that is able to quickly lock onto and impact an enemy target. ATM Launchers come in three distinct types: Extended Range (ER), Standard (STD) and High Explosive (HE). ATMs are the most powerful conventional missile weapon system deployed and are only outclassed by the ArrowIV and Thunderbolt Missiles. The ER and STD variants are hampered by a minimum range (120m for STD and 150m for ER), making them less useful for close-range engagements but more effective for medium-long range fighting. However their lack of the LRM's ballistic trajectory coupled with a shorter lock-on time makes them more useful at direct engagements than their non-ATM counterparts. The HE variant has no arming deadzone, making it the weapon of choice for close-range and brawling Mechs, and its staggered launching pattern helps prevent enemy players from returning effective fire due to the shaking imparted by the explosions. ATMs will not travel further than their maximum range, instead exploding when the maximum range has been reached.

The ATM is a Clan-only weapon system.

Weapon Stats

All stats are current as of release 0.8.6.

Standard

Weapon Lock Range Max Range Min Range Ammo/ton Heat Damage Damage Type Secondary Damage Secondary Damage Type Splash Radius Shots/min Mech Damage/sec Heat/sec Ammo Cost/ton Max Damage/ton Ammo Notes
Air ATM3 750m 750m 120m 108 43 3x 120 Missile 3x 120 Frag 1m / 3m 8 50.4 5.73 1100 13608 ---
ATM3 750m 750m 120m 108 43 3x 138.42 Missile 3x 138.42 Frag 1m / 3m 12 87.21 8.6 1100 15696.94 Missiles move quickly;
Have low arc
Air ATM6 750m 750m 120m 108 43 6x 60 Missile 6x 60 Frag 1m / 3m 120 756 86 1100 13608 ---
ATM6 750m 750m 120m 108 86 6x 138.42 Missile 6x 138.42 Frag 1m / 3m 9 130.81 12.9 1100 15696.94 Missiles move quickly;
Have low arc
Air ATM9 750m 750m 120m 108 43 9x 40 Missile 9x 10 Frag 1m / 3m 120 756 86 1100 13608 ---
ATM9 750m 750m 120m 108 129 9x 138.42 Missile 9x 138.42 Frag 1m / 3m 8 174.41 17.2 1100 15696.94 Missiles move quickly;
Have low arc
Air ATM12 750m 750m 120m 108 43 12x 30 Missile 12x 30 Frag 1m / 3m 120 756 86 1100 13608 ---
ATM12 750m 750m 120m 108 172 12x 138.42 Missile 12x 138.42 Frag 1m / 3m 7 203.5 20.07 1100 15696.94 Missiles move quickly;
Have low arc


Extended Range

Weapon Lock Range Max Range Min Range Ammo/ton Heat Damage Damage Type Secondary Damage Secondary Damage Type Splash Radius Shots/min Mech Damage/sec Heat/sec Ammo Cost/ton Max Damage/ton Ammo Notes
Air ATM3 ER 1250m 1500m 150m 108 43 3x 86 Missile 3x 86 Frag 1m / 3m 8 36.12 5.73 1100 9752.4 ---
ATM3 ER 1250m 1500m 150m 108 43 3x 87.17 Missile 3x 87.17 Frag 1m / 3m 12 54.92 8.6 1100 9885.4 Missiles move quickly;
Have low arc
Air ATM6 ER 1250m 1500m 150m 108 43 6x 43 Missile 6x 43 Frag 1m / 3m 120 541.8 86 1100 9752.4 ---
ATM6 ER 1250m 1500m 150m 108 86 6x 87.17 Missile 6x 87.17 Frag 1m / 3m 9 82.38 12.9 1100 9885.4 Missiles move quickly;
Have low arc
Air ATM9 ER 1250m 1500m 150m 108 43 9x 28.67 Missile 9x 28.67 Frag 1m / 3m 120 541.8 86 1100 9752.4 ---
ATM9 ER 1250m 1500m 150m 108 129 9x 87.17 Missile 9x 87.17 Frag 1m / 3m 8 109.84 17.2 1100 9885.4 Missiles move quickly;
Have low arc
Air ATM12 ER 1250m 1500m 150m 108 43 12x 21.5 Missile 12x 21.5 Frag 1m / 3m 120 541.8 86 1100 9752.4 ---
ATM12 ER 1250m 1500m 150m 108 172 12x 87.17 Missile 12x 87.17 Frag 1m / 3m 7 128.144 20.07 1100 9885.4 Missiles move quickly;
Have low arc

High Explosive

Weapon Lock Range Max Range Min Range Ammo/ton Heat Damage Damage Type Secondary Damage Secondary Damage Type Splash Radius Shots/min Mech Damage/sec Heat/sec Ammo Cost/ton Max Damage/ton Ammo Notes
ATM3 HE 300m 293m 0m 108 51 3x 184.56 Missile 3x 184.56 Frag 1m / 3m 12 116.27 10.2 1100 20929.1 Missiles are stagger-fired (one at a time)
ATM6 HE 300m 293m 0m 108 102 6x 184.56 Missile 6x 184.56 Frag 1m / 3m 9 174.41 15.3 1100 20929.1 Missiles are stagger-fired (three at a time)
ATM9 HE 300m 293m 0m 108 153 9x 184.56 Missile 9x 184.56 Frag 1m / 3m 8 232.55 20.4 1100 20929.1 Missiles are stagger-fired (three at a time)
ATM12 HE 300m 293m 0m 108 204 12x 184.56 Missile 12x 184.56 Frag 1m / 3m 7 271.3 23.8 1100 20929.1 Missiles are stagger-fired (three at a time)


Advantages/Disadvantages

The main advantage of the ER and STD ATM weapons are their fast travel speed and maneuverability, which when coupled with the flat trajectory makes it well suited for engaging airborne targets. The HE ATM weapon fires in a staggered launching pattern and imparts screen shaking, making it good for preventing accurate return fire.

On the down side ATMs carry less missiles per ton of ammunition, giving it less staying power than comparable missile racks of different systems, making them more prone to running out of munitions than other systems. In addition their smaller salvo size means they are affected by enemy AMS more than systems with larger salvos.


Canon

Introduced in 3054 by Clan Coyote, the Advanced Tactical Missiles featured the ability to select different ammunition types. ER Ammunition significantly extended the range of the launcher beyond that of even LRM's, HE Ammunition gave the missiles a much more powerful warhead at a cost of range, and Standard Ammunition split the difference. With each launcher having an integrated Artemis IV FCS the Advanced Tactical Missile launchers also featured improved cluster accuracy over traditional LRM and SRM launchers. ATM's are mounted in tube clusters of three. The release of the ATM is significant because it ended the technological stagnation of the Clans (along with the Heavy Laser that would be introduced a few years later).

To date the Inner Sphere has not attempted to duplicate the ATM, instead focusing on specialized munitions for the LRM and SRM launchers already available in the field.


Usage

The following vehicles equip these weapons.

Air ATM3 ATM3 Air ATM6 ATM6 Air ATM9 ATM9 Air ATM12 ATM12

See Also