I've recently started out and so far I'm liking the Hybrid Gun/Sword Build (currently still at 2*). But moving forward weapon-wise, I am thinking of doing a shadow sword and elemental gun, maybe the nightblade line and the voltech alchemer line. I prefer shadow sword because of the slimes and melee gremlins; elem gun for the puppies and mecha knights.
Can I carry this plan towards the endgame?
Should I switch for an elem sword and shadow gun instead?
If you have suggestion for other weapons/armor I'd really appreciate that!
I'm running elemental hood/cloak right now by the way. Thanks!
There are a bajillion posts and guides that answer the question in your post. Here's the one that is most likely to be mentioned:
Bopp's sword guide
You can carry on your plan into the endgame, but you might feel a bit less powerful than other knights. This is because the main endgame levels are undead-themed, where your shadow sword will be almost useless, and your alchemer will be outpaced by more damaging weapons. Most people use an elemental sword, for example the elemental version of the brandish, coupled with a piercing autogun like Blitz Needle to use on the fiends and boss.
The weapons you have chosen aren't bad though. if you are enjoying them then stick with them.
If you are confident in your ability to not get hit, upgrade your elemental armour into a chaos set, which gives you huge bonuses (but has terrible defence, so requires you to dodge attacks well).
If you think you could do with more defence then I would recommend moving onto a different set such as Skolver or Vog, which give good bonuses without the weakness in defences that chaos gives. You should always try to get offensive bonuses instead of defence, as it makes combat faster and easier as long as you avoid attacks (which is usually not very difficult)
For shields, Swiftstrike Buckler is very good as it gives a great offensive bonuses, but it is only 3* so you will have to craft another shield to pass through the rank missions. Barborous thorn shield is a great alternative, as it gives almost-as-good bonuses while having full 5* defence.
I'll try to think of more but that's all I've got for now, Hope you enjoy playing, and don't hesitate to ask for help in-game