People have been complaining about these forever, but I have't really seen some math hammer in any of the proposed solutions. So, here's the mathhammering on accuracy:
Monte Carlo, 10,000 trials each
What does this mean? rather than work out the damage exactly, I just had the computer roll the dice 10,000 time for each to hit number and called it close enough.
Rem:
By RAW, the result on one damage die may be replaced by your Degree of Success.
This provides slightly more benefit to weapons that roll several d10 for damage, as they are more likely to have a roll low enough to be replaceable. That's adding even more damage to accurate weapons, as the both roll more dice and are more likely to have higher DoS...
A 1d10 Weapon
The weapon used is just a 1d10 damage weapon. You wanted to look at a lasgun, you'd just add the fixed damage in. A multi d10 damage weapon would require more rolling, but you can probably pretty safely add just add 5.5 to 6.0 damage per extra d10.
RAW to Aimed Accurate Advantage hit Per Attack Per hit Per Attack Per hit Per Attack Per hit 20 1.13 5.57 2.88 9.46 1.75 3.89 25 1.36 5.49 3.71 10.72 2.35 5.23 30 1.66 5.63 4.66 11.68 3.00 6.05 35 2.01 5.69 5.56 12.40 3.55 6.71 40 2.32 5.78 6.60 13.12 4.28 7.34 45 2.62 5.78 7.37 13.49 4.76 7.72 50 2.93 5.90 8.54 14.13 5.61 8.23 55 3.29 5.99 9.55 14.60 6.26 8.61 60 3.64 6.05 10.56 15.04 6.93 8.99 65 3.98 6.20 11.51 15.49 7.53 9.29 70 4.40 6.26 12.47 15.72 8.07 9.46 75 4.82 6.42 13.74 16.17 8.93 9.75 80 5.22 6.51 14.89 16.52 9.67 10.01 85 5.73 6.70 16.11 16.98 10.38 10.27 90 6.13 6.81 17.33 17.33 11.21 10.52
How to read this table:
To hit: this is the base to hit of the sample (non accurate) aimed attack
So, for example, if you chance to hit with a (non accurate) aimed attack was 40, if you were using a 1d10 damage weapon, you'd exped to do roughly 2.32 damage with every attack action, or 5.78 damage per hit.
The 'accurate' part of the table lists includes the +10 to hit bonus in the same row as the base to hit. So, for example, if your base to hit with an aimed shot was 40, and your weapon because accurate, you'd compare it to the 'accurate' entry on the 40 to hit row, not the 50.
----------
For example, if you were firing aimed single shots from your lasgun on overcharge mode (1d10+4 damage) and your to hit in with an aimed single shot was 50, then you'd expect to do around 9.90 damage per hit. Against an ork boy (Armor 2, TB 6) you'd expect to do around 1.90 damage per hit, and it would take you around 12/(1.9*.50)=~12.6 shooting actions to bring him down to zero wounds. And you'd have a very hard time finishing him due to his true grit. Something like another 16 shooting actions.
Now, imagine if the hand of the emperor came down and made your lasgun accurate. You'd look on the table and see your average damage per hit is 14.13 +4 = 18.13 damage. Against the same ork boy, you'd expect to need around 12/(10.13*.6) =~1.97 shotting actions to bring the ork down to zero wounds. Your next hit would kill the ork, so you'd need roughly another two shooting actions to get it done.
So what if you set your lasgun on overload instead? (1d10+5, penetration 2)
=5.90+5 +2 -8 = 4.90 damage per hit, 12/(4.9*/50) = 4.08. around 4 shooting actions to get the ork to 0 wounds. On the order of 6 shooting actions to kill him.
---------------------
So if you are just joining us, I hope you see why everyone wants an accurate weapon. It adds around 7 to 8 damage per hit to your shots. Which turns into wounds even more effectivly because you have to penetrate toughness much less.
----------------------
So, here's the idea I been doing the mathhammering on:
1.
Remove the ability to replace one of your damage die with your Degree of Success
2.
Attacks that hit the head now do +1d10 damage
3.
Attacks that hit the torso now do +1d5 damage
4.
When you hit a target, you may modify your result on the hit location table by up to 5 tiems your degree of success. For attacks that hit multiples times, this only applies to the first attack, the following attacks still follow table Table 8–2: Multiple Hits on page 246.
Example:
You need a 50 to hit the target.
You roll a 23, this gives you a hit with a DoS of 3. Your normal hit location would be a 32, but you could modify by up to 15 points, so you can hit the torso (leave the roll as it is), left arm (subract 3 from the roll), or right arm (subtract 12 from the roll) if you so choose.
Proposed to Aimed Accurate Advantage hit Per Attack Per hit Per Attack Per hit Per Attack Per hit 20 1.63 8.38 2.57 8.43 0.95 0.05 25 2.14 8.50 3.04 8.71 0.91 0.21 30 2.57 8.43 3.45 8.73 0.88 0.29 35 3.04 8.71 3.93 8.78 0.89 0.07 40 3.45 8.73 4.35 8.80 0.90 0.08 45 3.93 8.78 4.93 9.03 1.00 0.25 50 4.35 8.80 5.38 8.99 1.03 0.18 55 4.93 9.03 5.90 8.98 0.97 -0.05 60 5.38 8.99 6.28 8.96 0.90 -0.03 65 5.90 8.98 6.76 9.03 0.86 0.05 70 6.28 8.96 7.26 9.12 0.99 0.17 75 6.76 9.03 7.78 9.14 1.02 0.12 80 7.26 9.12 8.18 9.07 0.92 -0.06 85 7.78 9.14 8.68 9.14 0.90 0.00 90 8.18 9.07 9.10 9.10 0.92 0.04
How does this compare to RAW?
Difference to Aimed Accurate hit Per Attack Per hit Per Attack Per hit 20 0.50 2.81 -0.30 -1.02 25 0.77 3.01 -0.67 -2.01 30 0.91 2.81 -1.21 -2.95 35 1.03 3.02 -1.62 -3.62 40 1.13 2.94 -2.25 -4.32 45 1.32 3.00 -2.44 -4.47 50 1.42 2.90 -3.16 -5.14 55 1.64 3.04 -3.66 -5.62 60 1.74 2.94 -4.29 -6.08 65 1.92 2.78 -4.75 -6.46 70 1.87 2.69 -5.20 -6.60 75 1.94 2.61 -5.96 -7.03 80 2.05 2.61 -6.70 -7.45 85 2.06 2.44 -7.43 -7.84 90 2.06 2.26 -8.23 -8.23
Results of the proposed change?
The damage per hit from all (non accurate attacks) increases by around 3 points. The accurate quality does not significatly effect the the damage per hit of the attack, but it does give a 1 point damage per attack advantage (i.e. all accurate now does it let you hit more).
Under the new system, 50% base hit with aimed shot, overcharged lasgun (1d0+4), vs. ork boy:
expected damage per hit, 12.8 (12.8-8 = 4.8 vs ork); 5 shooting actions to bring to 0 wounds. Around 6 more shooting actions to kill him.
With accurate lasgun: (12.99 - 8 = 4.99 vs ork); 4 shooting actions to bring down. Around 5 more shooting actions to kill him.
But what if you set your lasgun on overload?
=8.8+5+2-8 = 7.8 | 12/(7.8*.5) = 2.5 shooting actions to bring the ork to 0 wounds. Around 4 more shooting actions to kill him.
----------------
Now, the effect you want for moar damage is a called shot to the head, becuase that guarantees you +1d10 damage. And the +10 to hit from accurate weapons does make this slightly easier, but an accurate weapon is a slight, rather than vast improvement over a weapon that otherwise has the same stats.