okay, got it.
yeah, I'm going with a Barbarian for play #1, because there aren't any other barb party members, and I heard monks are weird.
So since Carnage doesn't work at range, I think my current strategy of double flails for low DR and an Estoc for high DR is viable. Here's a talent breakout.
2 Weapon Focus Adventurer
4 Accurate Carnage
6 Improved Frenzy
8 Two Weapon Style
10 Two-Handed Style
12 ???
I tried for a while having my barb be a Ruffian Barbarian, wielding a club and a stiletto in one slot, and a pistol in the other. Here's what I found. Alpha-striking with the pistol works (if the pistol is not an unmodified Disappointer), but then I have to activate Frenzy then charge into melee. By that point the front line has been set, and I found Aloth getting wrecked often in melee. Here's what I do now
1. My Barbarian
a) activate Frenzy (free at start of combat)
b) run towards nearest bad guy, and start swinging (switching out weapons if needed)
2. Eder
a) shoot the Disappointer at something
b) switch out for his sabre and shield, and try to trip something
and the ranged guys stay at range. Basically, I found that setting the line early was important. My barbarian can do that (and Eder can help) much better than Eder by himself and a shoot->rage->smash barb.