To Reallyhairydave : i'm noob with that kind of build but it seems good as long as you can start fights on your own terms (low initiative, 3 con, 3 agi, psi, no evasion and dodge = you're probably dead in on turn if anything surprises you).
I'm currently lvl 8 with this build on dominating :
http://underrail.info.tm/build/?GQUDBgoNAwbChzgAAADCh8KHADIAAHNzDipnAC3ChwAAACsBJmI9LioCH0s5MyhjNQStarted with 9 con, i'll definitely pick last stand as suggested by paulkirikawa, wondering if going to 10 for thick skull is worth.
All fights went pretty smoothly so far, mostly thanks to little tricks with doors... Gonna tackle those big green mutants when i'm back home.
Pyromaniac is great, the 3 turn duration of burning gives great crowd control when cast at the start with premeditation.
However thermodynamicity feels like a complete waste so far, the AP gain gives me nothing significant and i run quickly out of psi anyway. Maybe i'll find more use for it later.
Have to wait lvl 10 to see how my "ambush"+pyromaniac + survival instincts strat work. If it's good i could probably dump the "snipe" feat, well maybe not because of those immune to burn guys...
As for gear i'm planning to go for Smart 24 AP Spearhead and ... a laser pistol. Those things are pretty insane when you got a high crit chance, got long range, good precision, only 15 AP to shoot even with 3 Dex.
I really don't know for the rest though, i could either go the "max con" way with infused pig leather, or the max "crit chance" with infused rathound. I think pig is probably better for that build, surviving one more turn basically meaning you get +50 AP.
Any suggestion is welcomed