Re: Some mid-newbie questions
Recover the prototype in PJ, reach Fleet Commander rank, visit the CSC Terra, and successfully complete Decker's mission (honorably).
Not without mods.
Almost any laser, particle, ion, and positron weapon. Most plasma weapons are not affected by longzhus, but the Iocrym fracture cannon is an exception. Most shields can be repaired or enhanced by longzhus as well.
You win the game without dying. Easier said than done.
Mod? The modified Auroch shown in the picture came from the Light Carrier Playership mod. Other mods with playable ships may feature this too.