Wrong MWO acts like neither.
ECM Suite(from TW pp. 134):
Within its effect radius, an ECM suite has the following effects on the following systems. The ECM suite does not affect other scanning and targeting devices, such as TAG and targeting computers.
Active Probes (BAP): Active probes cannot penetrate the ECM's area of effect. The probing unit would notice that it is being jammed, however.
Artemis IV FCS: ECM blocks the effects of Artemis IV fire control systems. Artemis-equipped launchers may be fired as normal missiles through the ECM, but they loose the Cluster Hits Table bonus.
In other words we should still be able to lock LRMs when someone has ECM but the lock on speed and increase in individual missile hits would go away and it'd be as if we weren't Artemis equipped
Narc Missile Beacon: Missiles equipped to hom in on an attached Narc pod lose the Cluster Hits Table bonus for that system if the pods themselves lie within an ECM "bubble." The Narc launcher itself [...] is not affected by ECM.
If you Narc a guy and he is protected by ECM your missile boat can still lock and fire like normal, he just doesn't get the bonus the Narc normally gives.
Angel ECM Suite (TO pp. 279):
The Angel ECM Suite works like standard ECM, but can also block the [...]
(Jihad era equipment not applicable here)[...] and even negates the locking systems of Streak missiles. Streak missiles fired into or through a hostile Angel ECM bubble will not fire if the to-hit roll fails, but on a successful Streak launcher attack, the attacker must roll on the Cluster tables as though the launcher were a standard (non-Streak) model.
Your Streak SRM2s now fire like regular SRM2s
MWO ECM from
here:
David Bradley said:
When a Mech is hidden by a friendly ECM:
Enemy Mechs will have to come within 1/4 the normal distance (200 m instead of 800 m, by default) for hidden Mechs to show up on their battlegrid and HUD.
The Beagle Active Probe is of no use in extending this range.
It takes twice as long to achieve a missile lock against a hidden Mech.
Narc beacons will stick to hidden Mechs, but they won’t provide their normal bonuses until the Mech leaves the ECM’s range.
Artemis IV does not provide any bonuses against hidden Mechs.
When your Mech is disrupted by an enemy ECM:
You will not know where your teammates are, and they won’t know where you are, unless you have direct line of sight to each other.
You cannot share any targeting data with the rest of your team, and vice versa.
Your Beagle Active Probe ceases to function.
You cannot achieve any missile locks.
Your TAG laser can still fire but provides no bonuses.
Your battlegrid and targeting information will flicker.
Shorter detection range is not in the real rules and is
THE problem especially since it is being applied to every 'Mech friendly to the ECM unit that are within range. Because units can't be detected until they are within 200m a whole team can "cloak" right up to or past their enemy. Combine that not being able to share targeting data (which only applies to C3 systems) and the fact friendly 'Mechs in enemy ECM are invisible, means that a team with ECM can sneak up on and destroy enemy 'Mechs without their team even knowing they are in danger much less assist.
The fact that it blocks
all missile locks and not just Streak is another problem since in TT you target enemy 'Mechs and not hexes (unless you're using special munitions) and ECM doesn't stop that. In MWO targeting enemy 'Mechs with LRMs is represented by the locks we get and if we can't get them because of ECM then ECM is suddenly far far more powerful than it is in TT and more powerful than it was ever intended to be.
My point is that ECM
isn't like Angel ECM at all, it is its own breed of super, abominably powerful ECM that is not representative of any ECM that exists in BattleTech.
Edited by Kartr, 08 March 2013 - 04:40 PM.