hmm
Ive played this almost inhuman amounts of hours the past two days...
boost points, I believe are obtained from defeating FOE's, not sure but they are pretty helpful.
I switched out my dark hunter for a landschnekt and have leveled him up to 14ish. Most of my characters are near 17 I believe, too lazy to check atm
My current party is
Protector - Landsknecht - Survivalist
Alchemist -Medic
My protector does well, the protecting. F.Shield and B.Shield are really handy, as is the provoke/parry combo when it works.
Landsknecht is the power guy, does more damage at a lower level then all my other people when it comes to physical damage. Tornado is pretty handy move.
Survivalist has that move that lowers enemy accuracy which has kept him around so far. Multihit and Trueshot are pretty powerful as well.
Alchemist - well Ive made him center around fire, he has fire/flare/inferno as well as basic ice/volt in case they are needed. Probably my most powerful character.
My medic has cure 1/2/3 and salve, which is soo much better then cure considering it cost only one more tp to use atm and heals everyone. pretty much a given to have a medic around. Still need revive however, working on that
So far I have gotten to Fenrirs lair and got my ass kicked pretty hard. Probably because after a while the other wolves (skolls? i noticed they are harder then regular wolves, if only enough to be more annoying) join in and fuck me up. I need to kill those fucks off first.
A cheap way to get money I read somewhere is to make five survivalists and use all their skill points on chop, go to that wood area on bf1 (through that secret passage way if you have found it) and chop to your hearts content. Sell all the stuff you get and you will make roughty 500-800 a day. it costs 8en to sleep at the inn for all your low level survivialists and you make a huge fucking profit.
very handy. maybe even game breaking.

I have done all the quests so far but the lvl 20 landschnekt one.