To summarize TAG should always work & Streaks/Regular LRMs should always work if using Canon BT/MW.
Number of (regular) missiles hit per salvo in current MWO is OP. On average only about 50%-60% should be hitting i.e. LRM20 average 12 missiles hit per salvo.
All this information was taken from
http://www.sarna.net/wiki/Main_Page which is one of the best resources for Battletech information.
http://www.sarna.net...rdian_ECM_Suite
Guardian ECM Suite is typically used to shield allied units from such equipment by emitting a broad-band signal meant to confuse radar, infrared, ultraviolet, magscan and sonar sensors.
[2] Affected systems include
Artemis IV,
C3 and
C3i Computer networks, and
Narc Missile Beacons. A Guardian can jam a
Beagle Active Probe (or its Clan
equivalent), but the probe-equipped unit will be aware of the jamming. The greatest drawback to the Guardian is its limited range 180 meters. Sensors can sometimes override this jamming, though by that point the enemy unit is already within visual range and can track the opposition with their own eyes.[2]
http://www.sarna.net...Angel_ECM_Suite
Angel ECM Suite is an experimental version of the
Guardian ECM Suite operating on a broader spectrum and greatly advances ECM technology on the battlefield.
Game Rules
The Angel ECM Suite represents a great advance in ECM technology from the standard Guardian model. Angel suite completely blocks the following systems on enemy units:
Artemis IV,
Artemis V,
Beagle Active Probes,
Bloodhound Active Probes and their
Clan equivalents,
C3 Master Computers and
C3 Slaves,
Streak Missile Launchers and
Narc missile beacons. Streak missiles may be fired at units affected by the device, but they function as standard missiles.
When using
ECCM rules, the Angel ECM Suite counts as two ECM/ECCM units (depending on how it is set) for the purposes of determining the ratio of ECM to ECCM in a given area.
http://www.sarna.net...cquisition_Gear
Target Acquisition Gear (TAG) is an advanced targeting device for use by artillery spotters. The TAG unit works by firing an infrared laser beam to designate the target and transmits that data via a tight-beam laser communication system to the guidance systems of friendly "smart" bombs and missiles. TAG is compatible with systems such as
Arrow IV Homing Missiles or
LRM munitions.
http://www.sarna.net/wiki/Streak_SRM
Streak Missile Launcher Unlike a standard SRM whose shotgun effect may result in some misses and some hits, Streak guidance gives the lighter launchers the effective average firepower of the heavier and more wasteful SRM systems, but with considerably less variation in damage effects. The only disadvantages are that Streak launchers are incompatible with other missile target acquisition technologies such as the
Artemis IV FCS and
Narc Missile Beacon, their specialized ammunition is much more expensive, and some users are willing to accept partial hits rather than not be able to fire on demand.
http://www.sarna.net/wiki/LRM
Long Range Missiles are designed to engage the enemy at great distances at the expense of damage dealt. Adapted towards the profusion of
electronic jamming on the battlefield and the effectiveness of
current armor designs, these missiles are capable of indirect fire and disperse over a smaller area than
Short Range Missiles.
Inner Sphere LRM launchers achieve this range by firing at a ballistic launch angle, making them less accurate at close range.
Clan LRM launchers do not suffer from this effect, in addition to being smaller and more compact, thanks to their technological advantage. LRMs are highly upgradable, able to fire
a variety of warheads and benefit from devices such as
Artemis IV FCS.
[1]
http://www.sarna.net/wiki/CBT_Tables
Number of Missiles Hit Table
Die Roll (2D6) Number of Missiles Fired
2 3 4 5 6 9 10 12 15 20
2 1 1 1 1 2 3 3 4 5 6
3 1 1 2 2 2 3 3 4 5 6
4 1 1 2 2 3 4 4 5 6 9
5 1 2 2 3 3 5 6 8 9 12
6 1 2 2 3 4 5 6 8 9 12
7 1 2 3 3 4 5 6 8 9 12
8 2 2 3 3 4 5 6 8 9 12
9 2 2 3 4 5 7 8 10 12 16
10 2 3 3 4 5 7 8 10 12 16
[u]11[/u] 2 3 4 5 6 9 10 12 15 20
[u]12[/u] 2 3 4 5 6 9 10 12 15 20