Is there a specific rule when a pc is shooting from their person at a starship and a starship shooting at a person? With page numbers if relevant... For Age of rebellion or Edge of the empire.

Characters shooting at vehicles use the normal combat rules starting on EotE197. Special note is page 212: size differences. Difficulty is based on range, modified by the size of the target.

Vehicles shooting at characters use the normal vehicle combat rules starting on EotE223. Special note is page 234, Step 2: Assemble the Dice Pool. Difficulty is based on silhouette difference, no special modifiers.

The silhouette differences for firing at a Starship use the same table as Starships firing at Starships.

As I recall:

• Character shooting at a vehicle = futile gesture since their damage is divided by 10 before soak (you need to do at least 20 damage to have a chance of scratching a vehicle scale target).
• Vehicle shooting at a character = dead character if they get hit since damage is multiplied by 10 before soak (a 3 damage vehicle scale weapon will do at least 40 pre-soak damage to a character scale target).

34 minutes ago, Ominovin said:

Character shooting at a vehicle = futile gesture since their damage is divided by 10 before soak (you need to do at least 20 damage to have a chance of scratching a vehicle scale target).

AOR pg 236, box at the bottom. Vehicles multiply by 10, personnel don't divide by. Also Vehicles, unlike people, don't need to suffer Hull Trauma to be able to be critted, you only need beat the Armor (AoR Pg 257). So if I shoot my damage 9 blaster at your armor 1 speeder and score 2 success and a triumph, even though I don't do hull trauma, I can still crit your vehicle.

That's how most Personal->Vehicle weapons are really intended to work, by Critting the vehicle until it can't fight, which with a little luck, usually won't take many crits. A couple "weapon damaged" or "Engines damaged" will usually be enough to make the vehicle a non-threat or suffer a mobility kill. If you apply Crits kill minions to vehicles, you can one-shot those vehicles with a crit.

34 minutes ago, Ominovin said:

Vehicle shooting at a character = dead character if they get hit since damage is multiplied by 10 before soak (a 3 damage vehicle scale weapon will do at least 40 pre-soak damage to a character scale target).

KO, not dead. You can't die unless you get a "dead" crit result, and you can only ever take your WTx2 in wounds. so if your WT is 12, you can't ever take more that 24 wounds no matter what the damage of the weapon is. As such with the exception of really high WT characters, a handful of Stimpacks will get you moving again.

The GM does have the option to add +50 to the Crit roll, but that's an option and not a rule. So the GM can apply it to that Proton bomb or the main guns on an AT-AT but doesn't have to apply it to that chance encounter with a strafing TIE.

2 hours ago, P-47 Thunderbolt said:

The silhouette differences for firing at a Starship use the same table as Starships firing at Starships.

Not quite. Table 7–4 is only when firing "from a vehicle or starship "(EotE234). EotE211 says that " …when it comes to characters, checks are only modified somewhat due to size. " So ±1 difficulty for silhouette difference when a character attacks. Silhouette comparison table for when a vehicle/starship attacks.

Okay, but are you sure it's any different? With something that is Silhouette 1, it can't be changed much because it can't fire at anything more than 1 Silhouette lower, and difficulty only decreases by one with bigger silhouettes.

7 minutes ago, P-47 Thunderbolt said:

Okay, but are you sure it's any different? With something that is Silhouette 1, it can't be changed much because it can't fire at anything more than 1 Silhouette lower, and difficulty only decreases by one with bigger silhouettes.

I'm pretty sure. Remember that personal scale combat difficulty is based on the range to the target, modified by the silhouette difference. Planetary scale combat difficulty is based on the silhouette difference, it doesn't take range into account.

• A silhouette 4 vehicle shooting at a silhouette 1 character (a 3-point difference) at close range: Daunting difficulty
• A silhouette 1 character shooting at a silhouette 4 vehicle at short range: Simple difficulty
• A silhouette 4 vehicle shooting at a silhouette 1 character (a 3-point difference) at long range: Daunting difficulty
• A silhouette 1 character shooting at a silhouette 4 vehicle at long range: Average difficulty

Yeah, you're right, I was thinking of it as "Base of Average, +/- based on sil difference" so while I knew the difficulty was based on range, I hadn't thought about the fact that the sil difference table for vehicles sets difficulty, not modifiers.

Just now, P-47 Thunderbolt said:

Yeah, you're right, I was thinking of it as "Base of Average, +/- based on sil difference" so while I knew the difficulty was based on range, I hadn't thought about the fact that the sil difference table for vehicles sets difficulty, not modifiers.

One of the many things they changed in the vehicle rules for Genesys that I love: it's all based on range, and all modified by silhouette difference.