Two damage systems, both are vs target number (practically the target number is Stamina+armor like in World of Darkness, with those general stats as well).

The first one, is that you add Wielder Strength or Weapon Strength + weapon modifier + skill, and then turn the resulting value into a die, which are rolled and have to exceed the TN to cause damage.
Like, Strength 3 + Modifier 1 (knife) + skill 4 = 8, resulting in the roll of a D8, to exceed a total armor of, say, 4 (Stamina 3 + 1(leather jacket).)

The second one, relies on using how easy or hard to hit something it is as a base die, instead.
Like, It is actually hard to hit someone with the bullet from a rifle if you don't aim, so it would have a D4, while it is far easier to wound someone nearby with a sword, so it would have a D10, and on that, skill would make the die higher, and the potential damage would add or subtract to the total.

I keep wracking my head over what would be best.

What are you trying to emulate or achieve?

In the case of the unaimed bullet, the concern is that while the bullet is unaimed, thus has a low probability of hitting, it is also capable of significant damage, if not an outright kill.

Quote from: Spinachcat;1122674What are you trying to emulate or achieve?

In the case of the unaimed bullet, the concern is that while the bullet is unaimed, thus has a low probability of hitting, it is also capable of significant damage, if not an outright kill.

Exactly this.
It is along with the idea that a natural Damage roll of 1 is always a fumble, and a natural roll of 2(and perhaps 3) always a miss.
So, an unaimed bullet would have something like D4+3 to D4+5 which would be well enough to score damage on most normal humans in low-grade armor if it actually hits.
Aiming would change the D4 to a D6, and actual skill would also raise it, and cumulative to D8.

The reason is that i aim ... (pun intended), to put the entire damage roll into One Roll per Attack, instead of Two or more (roll to hit + roll to damage).

...
An added problem with that second system though, is that an unaimed bullet is potentially able to cause as much damage as an aimed.
So perhaps there is another system, where the character simply roll to hit as per skill, and if it hits, the attack's damage goes always full against Armor, and if it is more, it wounds?
But in that system, there is no point in attacking anyone with superior armor.

So, as added realism? is found to be .. well, "un-gamey" theoretically, perhaps i shouldn't bother?