Hello everyone...
Let me first start by stating that this game, Underrail, is probably the best game I have played in the last 5 years. All the best aspects and themes of Fallout 2 updated for contemporary UI standards without loosing that retro isometric feel. Very happy!!
I'm playing a crossbow/traps/stealth character and currently hovering around level 10, doing quests in camp Hathor. On a random save game at level up I tried experimenting with various different feats, just for fun, and found myself extremely surprised: Vile Weaponry was by far the best, beating Ambush, Sharpshooter and even Hypertoxicity for sheer combat value. I had originally started playing on this experimental save to work out which of those three I would pick.
My rationale:
Where most debuffs in this game work in an additive way, vile weaponry actually has a distinctly non-linear aspect to it, in the sense that the gradually improving damage bonus pays two dividends. Since the % damage increase comes from "all sources" and since bleeding wounds are calculated based on actual damage done from first strike, this feat actually stacks on top of itself, initially giving a bonus to the causative bleeding wound and then a second time to the actually bleeding.
By my calculations, assuming one was to consistently use serrated bolts at a target... Work out very nicely: Let's assume a 15 damage constant for a serrated bolt...
(Without feat)
Damage = 15 + (3 x 5) = 30
And so on for as many arrows as you shoot...
Now, with the feat...
Arrow 1: Damage = 15 + (3 x 5 x 1.1) = 31.5 ..... assuming no further shots
Arrow 2: Damage = 16.5 + (3 x 5.5 x 1.2) = 36.3
Arrow 3: Damage = 18 + (3 x 6 x 1.3) = 41.4
Arrow 4: Damage = 19.5 + (3 x 6.5 x 1.3) 44.85
...
So even in that sense there is almost a 50% damage increase after the third arrow, once you factor in how bleeding wounds start to syngergise with themselves.
When taking into account an initial bleeding wound presumably caused by a carefully placed beer trap, and the "special tactics" feat which would allow you to lay down 3 serrated arrows within a single turn, you can actually jump right up to this +50% damage increase within the first round of combat, doing enormous damage because now there are 4 cumulative bleeding wounds and one stack of ongoing mechanical damage, all getting +30% too.
It looks small but it stacks up quite significantly, and again, much to my surprise: getting through the burrower section was made easiest not by choosing sharpshooter or ambush or even snipe, but by picking this feat. I had to sit down with a calculator and work this all out simply because I did not believe it myself, and wanted to get to the bottom of why this average looking feat was making life so simple in a practical play through.
And of course, there is also the fact that healing will also be reduced by 75% after the kind of ambush I described, getting to 3 stacks of infected wounds with 4 bleeding wounds within the first round. Which in many ways is just icing on the cake!!
Thoughts and feelings?