Less impressive, the series is starting to do what a lot of korean VR lit does, making way too many villians and sub plots without ever actually resolving them. Just making the main character stay afloat as he goes from one new problem to another but having many enemies hanging out in the background. Pirates, Emperors, Corruption, Dark Gods, Evil Cities. The list keeps building and he doesn't actually seem to be resolving it.
Beyond that, He seems to finally realize his weapons have a plateau point. Not that he realized they are basically screwed with enemies who have shields, get into melee or immune to range attacks. He simply realized that his riles don't scale with the people's increasing stats making things like a sword and bow far more powerful at higher levels.
Okay well that's a easy fix, increase the torque power on the trigger so that it sends the hammer or acceleration mechanism faster depending on the strength of the person pulling the trigger. That's how the higher level swords and bows work, they are using more force. So make the trigger pull need more force, make it so you need to be able to squeeze 1o0 pounds with the finger to launch that hammer down causing the bullet to accelerate as fast as the arrows do with a huge draw pull.
Next, he's only really using physical attacks with some elements, he needs to take advantage of magic. Make some magic riles. Use runes that scale power based on the magic power of the user. Make riles that either are mana based shooting mana beams or bolts, or just have that dial I've mentioned in a previous review. That a dial with the element types and active, while other elements are inactive with a null type rune. If he can make a semi sentient enchantment, he can make 'active' and 'not active' runes like his ship. Meaning he could have guns that shoot lightening bolts, Fire bolts, Water bolts, all depending on the scaling magic power of the user.
So his rilfes would increase in scale with the users, making it so someone with 20 points in strength pulling a trigger would shoot that bullet harder and faster than someone with 1 point not able to pull the higher torque triggers.
Then those with exceptional base magical values before the enhancement of stats, natural mages. Get magic rifles and scale off their magic stats, causing their mage riles to shoot more powerful bolts from them.
It's really not complicated and we've already seen what stuff the dwarves can craft and what skills come from using certain weapons. The riles skills are based on physical shots, so if he had weapons that got harder to pull causing more velocity from increased movement from release, It seems the system would grant skills that are based on that. Like, Bullet Speed, causes the bullet to accelerate based on strength attribute, ect ect.
Then he'd probably get a class unlocked for his people even if he couldn't get it called Magical Riflemen or Mage riflemen with the right person using the mage rile to 20 in scholar or what ever the mage class is. Causing the rile to act like a wand and increase power based on the user. Just it would have more enchantments than a wand and better aim. Honestly could probably just replace riles with wands but...Rifle vs wand? For the legion best keep it all rifles. Have Mage Riles and Physical Riles for the classes and their base attributes before levels. Got some nerdy scholar recruit with a natural 3 in magic , a huge core. Mage rifle. Got yourself some big strong lad, Physical rile!
Not really hard, thought it up as soon as it was mentioned in the book. So surely he could think of something so simple.