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[SR3] Vehicles and spells like Net and Blindness

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smokey

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« on: <11-19-16/1039:39> »
So...

- mana spells don't work vs vehicles. This includes all health spells. End of. Nice and clear.

- elemental manipulation spells are ranged attacks, can miss, and if they hit are resisted as per rules about vehicles vs normal weapons. Secondary effects are possible, and are worked out based on object resistance and base damage level of the spell as per MITS. Its a *little* ambiguous whether those secondary effects are just "object resistance", rather than it being shorthand for "object resistance unless its a vehicle in which case its 8+bod+half armour". I'd say its probably the latter, making vehicles also pretty resistant vs the secondary effects too.

- any other spell targeting a vehicle uses 8+bod+half armour as the target number, must have a force equal to half that, and the vehicle cannot resist. But what about any secondary effects?

If you take a spell like Blind (which vs organics is *resisted* by Int when cast, contrary to the actual spell description in MITS, you have to look at the table at the end), then the initial casting is clear: get one success and it is blind, full stop can't see anything at all.

Cool, ok, but an organic would then get to make a perception tests as a simple action to be able to see something, albeit with penalties based around the successes on the spell. Does the vehicle get to do this with it's sensor?

Active sensor tests normally take a complex action so its a bit of a moot point - if the drone is stuck making a complex action sensor test each round it is more or less neutralised. But normally a Pilot or Rigger *can* still make a passive 'notice something' check with a free action, so potentially, albeit bumped up to a simple action, could it do this?

Or should such an additional perception test be considered a 'resistance test'? In *that* case, the vehicle can't do that, its sensors don't work, end of.

And what about bind/net?

This targets and is resisted by your quickness, reduces your movement rate by reducing your quickness based on successes. Starts off easy: the vehicle gets no resistance check, the spell works if you hit the target number and have a minimum force.

But by how much is it's "quickness" (speed?) reduced by per success, limited though they will be? Do you just use Speed/10 or something as the quickness score? Do you base it on how the Movement spirit power works where its successes x acceleration?  What about the follow on *strength* check to break free of the bonds?


Spells like Chaff get more confusing. It doesn't have any secondary effects, and it already simply targets OR (which again is a bit ambiguous: I assume is shorthand again for "OR for standalone sensors, 8+bod+half armour for vehicle sensors"), and if it succeeds (presumably also requiring the minimum force of half the target number), then it just applies modifiers to the vehicles sensor tests. It has no additional stuff like Blind... but it raises another question:

You can't target vehicle subsystems with spells except for ranged manipulation spells which can take the called shot modifier and outright miss. Subsystems are all part of the vehicle 'aura'. Flak/Chaff are not described as creating sparkly bits of illusiory metal or scrap or what have you, they are described as literally targeting the sensor systems.

So what gives, there?



Confusing... and our players are about to head into Arcology Shutdown, so I really need to know how to handle these potentially 'drone disabling' spells consistently and above all *fairly*.


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« Last Edit: <11-19-16/1041:44> by smokey »

JD

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« Reply #1 on: <11-20-16/1721:33> »
I am not at all well versed in the rules, and I left MITS with my GM last session, but I'd say that, for simplicity's sake, spells that are obviously designed to taget humans simply do nothing if you try and cast against a vehicle. Thus, 'Blind' has no effect on a camera, and a spell that targets Quickness just slows down the rate of play, if you try and use it against a drone.
Slowing down a drone rigger is what smoke bombs are for. Or a well-placed blanket. A poncho will do in a pinch. Or shaving cream. It's amazing how many uses you can get out of that stuff, when you are up against annoying sensors. If you can blind it,  you can grab it and stuff it in a dumpster while you abscond to pastures greener.
""Just ignore the rules" seems to be the consistent take I get on this forum" 
-Typhus

smokey

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« Reply #2 on: <11-21-16/1440:12> »
I would agree except both of these spells specifically talk about targeting machines/vehicles. They just don't do it with enough granularity/signposting to the correct rules. Besides, Vehicles in SR are like Drow in DnD Forgotten Realms: direct magic is generally harmless. You have to find creative ways around them.

I've been thinking about it and this is what I think I'm gonna go with:

Blindness: I'll treat it like invisibility. Vehicles don't *just* have visual sensors, so vs invisibility we generally grant it half the modifier it would normally give and apply it to your Sig, so a normal metahuman goes from sig 6 to sig 10. We do the same with Silence except that only grants another +2 sig (Invis is normally +8 to spot, silence +4) . I'll just ignore the 'perception check to see anything'  component of blindness and just say its visual sensors are neutralised full stop, here's a bonus to your sig, you're still going to want to sneak/hde.

With Net I think I'm gonna go with the breaking through barriers rules, maybe apply stress if the vehicle gets netted before it starts moving and has to over rev to break the bonds of force.

But its still an annoying vague mechanic.