Well, there ineptitude towards tactics does mean that as long as we are creative and don't use the same strategy too often then we can exploit their weaknesses, which in this cases seems to be there rather poor attempt at a "All or Nothing" armor scheme. I think investing in "Smart Shells" and more maneuverable missiles would be good, if we decide to go crazy with the missiles we can do what WH40K does and put point-defense on them so they can be shot down or destroyed before they hit their target.
Let me just throw out a bunch of ideas, "Smart Shells" so our rounds can course correct if needed, Better missiles that can dodge PD, Missiles with PD so they can't be shot down, Mining ships that mine asteroids and extract material to make actual mines (Could also have resupply or civilian variants to build space stations) Not a tech but making a bunch of small stations to mine and produce resources (Basically very distributed industry while also being hidden, its around a bunch asteroids after all), Ship capable "Flamethowers", they suck at managing heat so small drone ships with "Flamethowers" should do good at messing with them, Defense Stations (small AI/Drone operated stations filled with missiles and guns) Quantum Computing MMI (Super strong androids operated from across the system? Yes please, or we could have an AI operate them, Better shipbuilding techniques and technologies (lower the cost of ships), Better Mining and Industry techniques and technology (lower the cost of ships).
That's all I can think of now, but I hope that some of these ideas are used, though some of them are a little out there or won't be possible for a while yet there are some good ones I really like in there.
Let me just throw out a bunch of ideas, "Smart Shells" so our rounds can course correct if needed, Better missiles that can dodge PD, Missiles with PD so they can't be shot down, Mining ships that mine asteroids and extract material to make actual mines (Could also have resupply or civilian variants to build space stations) Not a tech but making a bunch of small stations to mine and produce resources (Basically very distributed industry while also being hidden, its around a bunch asteroids after all), Ship capable "Flamethowers", they suck at managing heat so small drone ships with "Flamethowers" should do good at messing with them, Defense Stations (small AI/Drone operated stations filled with missiles and guns) Quantum Computing MMI (Super strong androids operated from across the system? Yes please, or we could have an AI operate them, Better shipbuilding techniques and technologies (lower the cost of ships), Better Mining and Industry techniques and technology (lower the cost of ships).
That's all I can think of now, but I hope that some of these ideas are used, though some of them are a little out there or won't be possible for a while yet there are some good ones I really like in there.