First of all, our Mining Bay is very low-quality. We'll be much better off in the long run if we upgrade it. Better mining pods would help, as would expanding the hangar.
We need some kind of offense. While missiles, lasers, mass accelerators and whatnot may work, what I would love to do is boarding pods. If we can get our crew members(or drones if we don't want to waste crew) on board their ship, we can cause untold of havoc.
Steal their resources! Sabotage their systems! Deliver computer viruses and biological plagues!
And if we can get a team far enough inside Ark 1... we can attack their Slipdrive!
FE-J0 "Hammer" Breaching Pod:
The Hammer is a spacecraft designed for one purpose: to breach the hull of the enemy Ark and deliver a living payload of our crew, ready to sabotage their ship!
The Hammer is a large cylinder-shaped pod crafted primarily of various metals, mainly the latest specialized alloys. Or whatever we can scrounge up. The Hammer uses hydrogen-based fuel to maneuver, but these maneuvers are only capable of changing direction, not actually propelling the pod forwards.
This is because the Hammer is basically a giant bullet, fired out of our new ship module, the Magnetic Accelerator, a magnetic cannon that acts like a railgun, using electromagnetic force to propel the Hammer pods at high speeds. The hydrogen fuel jets just allow the Hammer to perform a degree of self-aiming before impact.
The Hammer's velocity is high enough to enable it to pierce the hull of the enemy ship. The pod's front then detaches, deploying eight or so of our crew members into the enemy ship. From there? Well, they can cause all sorts of havoc.
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FE-J0 "Extreme Excavation" Blast Mining System:
We can do a lot better than the tiny mining ships we have right now and the tiny hangar they use. Our new Extreme Excavation system uses high explosives to blast away large amounts of material from whatever asteroid we mine. From there, we still use the tiny mining ships, but they now use large carbon nanotube nets to ensnare the blasted material. This should allow us to collect much more material than normal, and as a bonus should let us sabotage the enemy mining efforts.