[Xenon]

1. When a decker rolls Hide, does he roll vs. every IC present or the host in general?  Do all of the IC present add to his Overwatch Rating with their defensive hits?

Once.
IC is just an "extension" of the host.
They are all the same.
Either Host and all IC have you on their spot table or non do. They share.

The Host need to launch Patrol IC in order to have a way of using Matrix Perception to spot you again.
Only Patrol IC that have the "skill" to spot you.
The more evil IC need to wait for the Patrol IC to find the hacker before they can act
(or that the hacker use a Sleaze action that fail)

2. When a decker is running in silent, how often does the host check to see if it notices something is running silently?  Does Patrol IC (or some other form of IC) need to be present?

The Host have no way of spotting you unless it run Patrol IC. Most Hosts typically run Patrol IC 24/7 though.

Book does not say how often the Patrol IC get to spot you.
It can be once every single complex action for all we know.

My house rule is that it will run one check when you enter the Host. Then another if you spend time doing something, like a matrix search (which got a base time of 1 minute). If you are successful with a Matrix Attack action the Host will be instant aware that it is under attack and the Patrol IC should start to check every complex action.

Another house rule could be this:
Players get a -2 repeat modifier when doing the same action over and over - this could maybe be applied here as well... this modifier should in that case be reset when the decker does something to alert the Host again; such as successfully using a matrix attack action.

3. If a decker is discovered but not yet marked, do all IC know the decker's location?  What about IC brought out on subsequent rounds, assuming the initial wave of IC is destroyed before they arrive?

If a Patrol IC spot the decker then the Host and all other IC will also spot the decker (they are the same).
IC loaded by the Host will also have the decker on their spot table.
The Host and all IC will lose the decker if the decker manage to use the Hide matrix action.
Note, that if the Host got a mark on the decker (either from a failed sleaze attempt or if the Host marked the decker with Probe IC) then the decker first have to successfully Erase Matrix Signature before attempting to Hide.

[Kincaid]

Thanks for the replies!  One more matrix-related question: what does Patrol IC actually roll to try to find you?  Host Rating x2?  DP (In place of Intuition) + IC Rating (In place of Computer, I guess)?

[Xenon]

IC does not come at different ratings (any more).
The opposed test is Host Rating x 2 [Data Processing] v. Logic + Sleaze

Notice that this is not an attack action, so Patrol IC does not take matrix damage when they fail a perception test. The Host's Data Processing Rating that is used for the limit is also not the same limit as the Host's Attack rating.

[Kincaid]

IC does not come at different ratings (any more).
The opposed test is Host Rating x 2 [Data Processing] v. Logic + Sleaze

Notice that this is not an attack action, so Patrol IC does not take matrix damage when they fail a perception test. The Host's Data Processing Rating that is used for the limit is also not the same limit as the Host's Attack rating.

The IC in the example for Erase Mark (p. 239) has a rating.  Is this supposed to be the host's rating? 

Yet another question: If I am running hidden but have 3 marks on the host and the Patrol IC spots me (just standing there), what happens?  Presumably nothing, since I look like an authorized user.  Am I safe from checks until I do a Sleaze or Attack action?  Any matrix action?

[I have no doubt that most of these questions could be settled by "GMs call" and that's what I'll do at my table, but if my face in SRM gets capped, I'd like to try a decker and I'm hoping to hammer these things out beforehand.  Actually, I'm hoping the face doesn't get capped.]

[The Wayfarer]

Two questions here:

1)  Can someone explain to me the significance of the Data Processing rating?  Despite the index, I've been unable to find a definition in the rulebook.

2)  Autosofts.......where is the price list for them?  What page?  I don't see them listed on page 442.

[Kincaid]

Two questions here:

1)  Can someone explain to me the significance of the Data Processing rating?  Despite the index, I've been unable to find a definition in the rulebook.

2)  Autosofts.......where is the price list for them?  What page?  I don't see them listed on page 442.

1. Data Processing serves as the limit in various Matrix actions, notably Edit File and Matrix Perception.  It also is the backbone of Matrix initiative.

2. There's a price in the just-released errata.  https://dl.dropboxusercontent.com/u/12034805/SRM5%20Hot%20Patch%20Errata%20v1.0.pdf

[ZeConster]

Two questions here:

1)  Can someone explain to me the significance of the Data Processing rating?  Despite the index, I've been unable to find a definition in the rulebook.

2)  Autosofts.......where is the price list for them?  What page?  I don't see them listed on page 442.

1: Data Processing is used for cold-sim and hot-sim VR Initiative, and as your limit when using the Control Device Action, the Edit File Action, the Jump Into Rigged Device Action, the Matrix Perception Action, the Matrix Search Action, the Reboot Device Action, and the Trace Icon Action (page 244 has a list, although some of the actions don't require a test, but count as a 'legal', and therefore Data Processing, action).

2: listed in the temporary errata: Availability is Rating x 2, Cost is Rating x 500¥

pre-edit: gah, ninja'd.

[The Wayfarer]

Thanks.

1)  What quality (device rating, data processing, etc) limits the amount of programs a device can run at once such as a riggers RCC or a cyberdeck?  I understand you can have any amount in storage.

[Kincaid]

Thanks.

1)  What quality (device rating, data processing, etc) limits the amount of programs a device can run at once such as a riggers RCC or a cyberdeck?  I understand you can have any amount in storage.

The number of programs a cyberdeck can run at one time is deck-specific.  See page 227.  I can't actually find the limit for RCC's, but I think it would be a safe assumption that device rating would work.  Cyberdecks' limits are equal to their device rating, but listed separately, so I'm assuming once the Matrix book comes out there will be ways a decker can run extra programs and they didn't want any confusion (adding to program limit, but not adding to device rating).

[ZeConster]

Where does it even say RCCs can use programs? The book describes their functionalities as commlink + drone stuff, so other than autosofts (simultaneous limit is the RCC's Sharing rating, and Sharing + Noise Reduction <= RCC's Device Rating), I don't think RCCs can use any programs.

[Kincaid]

Where does it even say RCCs can use programs? The book describes their functionalities as commlink + drone stuff, so other than autosofts (simultaneous limit is the RCC's Sharing rating, and Sharing + Noise Reduction <= RCC's Device Rating), I don't think RCCs can use any programs.

The sidebar on p. 269.

[ZeConster]

Ah, of course. Strange how easy to miss those big red boxes can be. Yeah, I'd go with the RCC's device rating as active cyberprogram limit.

[jeffhartsell]

Do wired reflexes work in the Matrix VR modes? They do not in previous editions, but I don't see that called out in SR5. And there is mention of the +5d6 dice cap in the matrix user modes section, which implies that you can get bonuses to initiative dice in VR.

[Xenon]

Thanks.

1)  What quality (device rating, data processing, etc) limits the amount of programs a device can run at once such as a riggers RCC or a cyberdeck?  I understand you can have any amount in storage.

Noise Reduction & Sharing p.267
You split your device rating between Noise Reduction and Sharing.
Sharing is the number of programs you can run at the same time.

[Michael Chandra]

Yeah, I'd go with the RCC's device rating as active cyberprogram limit.

I seem to recall that has been confirmed as intended by the way, though not sure.