AmaroqStarwind
04/19/18 04:34 PM
174.235.17.105
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HarJel Missiles are an alternate munition for SRMs, LRMs, ELRMs, iATMs and 'Mech Mortars designed to interdict an enemy unit rather than destroy them. When the missile detonates, it releases a HarJel payload which will expand and harden to temporarily immobilize an enemy unit, although a sufficiently massive target can attempt to break free with a successful Physical Attack roll.
*Enemy mechs can attempt to escape as long as they have Walk MP greater than 1. The number of escape attempts they can perform every turn is equal to their Walk MP divided by 2, to a maximum of 3 attempts per turn and a minimum of 1 attempt every other turn (even while prone).
* Enemy mechs will receive an automatic and cumulative bonus on their escape attempt if they are equipped with MASC, TSMs (of any variety), Mechanical Jump Boosters or other such physical enhancements.
*HarJel Missiles are treated as a Light Rifle for damage purposes (except against conventional infantry, who are killed instantly).
*If an internal ammunition explosion occurs on a munition bay containing HarJel missiles, the mech will only receive 1 point of damage per ton of ammunition, but also 1 point of heat per ton, and simultaneously experience the same effects as a BattleMech HarJel System being destroyed. As long as a mech is carrying even one HarJel missile, it will have the Difficult to Maintain design quirk. (If the mech has Easy to Maintain, then it cancels out).
*SRMs do not contain (much) additional HarJel over their LRM cousins, but make up for it by increasing the Ammo Per Ton, Maximum Range and Maximum Target Weight all by 20%.
*HarJel missiles are compatible with both Artemis systems and NARC beacons, and are also treated as Swarm-i and Semi-Guided munitions. They can also be used in Streak launchers.
*For each missile that hits (roll on the Cluster Table), the missile can immobilize a combat or support vehicle up to 30 tons in weight, a humanoid BattleMech, IndustrialMech or ProtoMech up to 20 tons in weight, a Quad 'Mech up to 15 tons in weight, or an LAM/HoverMech/QuadVee up to 35 tons in weight. Multiply this maximum weight by the number of missiles that hit on the Cluster Table.
*A civilian-grade version of this munition exists which has a much weaker compound. Reduce the maximum target weight by 33%, and provide a cumulative –1 bonus to the escape attempt for each 1d6 turns since immobilization occurred.
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If you have any questions, comments or feedback, please share your thoughts below!
Discord: Amaroq the Kitsune#1092
Telegram: @Lycanphoenix
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Cray
04/19/18 07:00 PM
67.8.228.37
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While I'm not opposed to the general idea of an immobilization system for battlefield units, like a net for Solaris VII arenas, this weapon is suggesting a few kilograms of goop (of middling strength) can immobilize combat units massing tens of tons. Even an LRM 20 salvo would only deliver about 80kg (if LRMs are half warhead by mass) and HarJel is a goop that is known to have trouble with air pressure over a large area, let alone a 'Mech.
Perhaps a specialist launcher hurling a 1- to 5-ton net would get the job done?
Mike Miller, Materials Engineer
Disclaimer: Anything stated in this post is unofficial and non-canon unless directly quoted from a published book. Random internet musings of a BattleTech writer are not canon.
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AmaroqStarwind
04/19/18 08:56 PM
99.203.27.180
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Hmm, you're right. Maybe instead of completely immobilizing units, it will just severely hinder mobility on the specific part of a mech that it hits, such as reducing movement speed and imposing penalties on piloting rolls if it hits the legs, reducing accuracy and lifting capacity if it hits one of the arms, hindering torso twist if it lands in the torso region, blinding if it hits the head, and having a 1-in-36 (per missile) chance of jamming any weapons installed in the location it hits. Also reduce Ammo Per Ton by half.
HarJel Torpedoes, meanwhile, would probably be far more effective overall than HarJel Missiles.
Discord: Amaroq the Kitsune#1092
Telegram: @Lycanphoenix
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Cray
04/19/18 09:26 PM
67.8.228.37
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Sure, it'd be easy for the torpedoes to immobilize ships. I've paralyzed a 600-pound monster jet ski with a few ounces of rope, and don't remind my cousin, the owner. 
Another thought - almost too easy and powerful - is paint for jamming sensors. Can you imagine what some metal-filled paint could do to sensors? Blind radar, blind IR, blind optical...
Mike Miller, Materials Engineer
Disclaimer: Anything stated in this post is unofficial and non-canon unless directly quoted from a published book. Random internet musings of a BattleTech writer are not canon.
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AmaroqStarwind
04/19/18 10:15 PM
174.235.17.105
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So, an LB-X-like alternate munition that fires mech-sized paintballs?
(Response continues in "Alternate Autocannon Ammunition" in "Designs")
Discord: Amaroq the Kitsune#1092
Telegram: @Lycanphoenix
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