CursedPh4nt0m Reactor costs vs crew costs were re-balanced, with crew cost being halved. In my opinion small reactors have become much less viable. Competitive ships use large reactors (Linear missile barges, Ion orbiters, TB Railfans) or Mediums (Diagonal missile barges, Walls, Railfans). Turning three small reactors into a medium saves 25,000. Turning three medium reactors into a large saves 75,000. Turning nine smalls into a large saves 150,000. If you can mitigate the explosiveness of larger reactors, they're better.
Small reactors have the advantage of the designs being lighter due to few or any walkways and having no single point of failure like larger reactor builds, but the credit per power is worse and crew loses the larger battery size advantage of the larger reactors.
My door placement is perfectly normal, I just screwed up in some places. What do you mean about "Straight armor lines rather than brick version" ?