Out of curiosity, would you change your load out based on who you are grouping with? Or is your gun setup pretty universal?
As a tri-sword user I'm curious if that would alter a pure gun users load out at all if I ended up grouping with them.
I'll have to admit you must run with some pretty scrub people if you can't take down Vanaduke though ;) Sounds like you need a reliable Tri-sword user along with you to carry you through.
@Sparkster:
Yes, technically the prismatech does extra damage to mechs and undead since it does elemental damage. The trade off is that it does terrible damage to beasts and gremlins who are strong against elemental damage.
However, there are three other alchemers that also do elemental damage and inflict status effects as well. You'd be much better off going with a cryotech alchemer than a prismatech since the only downside is the possibility to refreeze ice jellies that were thawed out by someone's fire attack (which is pretty rare and not a big deal if it happens).