I've been trying to decide if I want to use C-3PO crew member vs. Kanan Jarrus to go along with Rey + Finn in the Falcon with the new title. Most people are urging to go with Kanan, who allows Rey to pop the 3 S-loop stress-free (which is important because I'll have Expertise as her EP).
But, flying Rey with one green die means she will die very quickly. I wanted to test to see if switching in C-3PO would be worth losing the ability to perform the S-loop stress-free. How many times does that happen in a normal game? Once or twice for me. I can live with not doing the stress-free S-Loop if I have the added benefit of survivability.
Here was my test:
I created a scenario of Rey going up against a standard 3-attack ship. This 3-attack ship has a target lock for each attack. I figured that was the easier dice-modifying tactic I could test in volume. Neither the attacker nor the defender had other modifiers (focus/evades). I tested dice results from all three ranges, both in-arc (to trigger Finn/Rey) and out-of-arc. I gave each range 10 rolls each. I added two more categories for range-3: guessing 0 agility dice, and guessing 1 agility die. I'll give you the totals at the top, with the supporting data below.
C-3PO Influence Results:
3PO Worked: 35 rolls -- 115 hits. 3.29 avg. -- 62 evades. 1.7 avg. -- 1.59 damage taken.
3PO Didn't work: 45 rolls -- 116 hits. 2.5 avg. -- 58 evades. 1.29 avg. -- 1.21 damage taken.
In-Arc Influence Results:
40 rolls -- 107 hits. 2.68 avg. -- 68 evades. 1.7 avg. -- 0.98 damage taken
Out-of-Arc Influence Results:
40 rolls -- 102 hits. 2.55 avg. -- 52 evades. 1.3 avg. -- 1.25 damage taken
Total Results:
80 rolls - 231 hits. 2.8 avg. -- 120 evades. 1.5 avg. -- 1.3 damage taken.
Conclusion:
Being in-arc is more important than triggering C-3PO. My gameplay will be focused on taking advantage of the rerolls, which makes sense for this build, both for attack and defense. That being said, this data sample doesn't show C-3PO giving enough of a defensive benefit to be worth the crew slot over Kanan. Rey is an offensive ship, and Kanan's ability will help Rey stay in arc without getting stressed, giving her both an action and remaining stress-free for Expertise.
* Test variables/weaknesses:
Not accounting for modifiers could make a huge difference. If Rey has expertise and gets an action, I could hold onto a focus for defense. Not every ship has a target lock ability, so it may not be accurate to account for damage. I didn't test against obstacles, which I think would make it more difficult to guess C-3PO correctly. Lastly, 80 dice rolls is slightly more than one game, but is still a pretty small sample size. Ideally, you would want 100 rolls for each category.
Supporting Data:
Range 1:
In Arc
3PO Worked - (4,2) (4,3) (4,2) (4,2) (4,3) --(4,2.4)
Didn't - (4,1) (4,1) (4,2) (4,1) (3,1)-- (3.8,1.5)
Totals: (39,18)
Out of Arc
3PO Worked - (3,1) (2,1) (3,1) (4,1) (1,1) (4,1) -- (2.8,1)
Didn't - (4,1) (4,1) (3,1) (2,1) --(3.25,1)
Totals: (30,10)
Range 2:
In Arc
3PO Worked - (3,2)
Didn't - (3,1) (2,1) (2,1) (2,2) (2,1) (3,1) (2,1) (3,2) (2,1) -- (2.3,1.2)
Totals: (24,13)
Out of Arc
3PO Worked - (1,1) (3,1) (2,2) (2,2) -- (2,1.5)
Didn't - (1,1) (3,1) (2,0) (1 ,1) (2,1) (3,0) --(2,0.6)
Totals: (20,10)
Range 3:
Guessing 0:
In Arc
3PO Worked - (2,1) (1,2) (1,1) (3,1) -- (1.75,1.25)
Didn't - (2,2) (3,3) (3,1) (1,3) (3,2) (2,2)-- (2.3,2.1)
Totals: (21,18)
Out of Arc
3PO Worked - (3,1) (2,1) (2,1) (3,1) -- (2.5, 1)
Didn't - (3,1) (1,1) (2,1) (3,1) (2,1) (3,1) --(2.5,1)
Totals: (24,10)
Guessing 1:
In Arc
3PO Worked - (1,2) (3,3) (3,3) (3,2) (2,3) --(2.4,2.6)
Didn't - (3,0) (0,2) (2,1) (3,1) (3,2)--(2.2,1.2)
Totals: (23,19)
Out of Arc
3PO Worked - (2,2) (3,2) (2,2) (1,2) (3,2) (2,2) (3,2)-- (2.2,2)
Didn't - (3,2) (3,2) (3,2) (3,2)
Totals: (28,22)