nop Railgun ships already have a natural disadvantage at swatting fast ships due to their density (and ions/lasers are already good at this).
I disagree. IMO railguns are a lot better than ions at swatting fast ships because of their up-front burst damage. For ions to deal meaningful damage, they need to be focused on a target for several seconds, which is extremely difficult for a large ship to do vs small, fast ships. Railguns have huge burst damage, which makes them more useful when you'll only be facing towards an enemy for a moment. IMO railguns should be weak vs fighters because they can't turn fast enough and because of overkill, not because they miss targets right in front of them.
Basically, I don't think railguns are or should be good vs fighters, but I do think that ions are worse. I agree that lasers are definitely better than both railguns and ions (and pretty much any other weapon) at swatting fighters.
nop The end-of-penetration effect was hard to aim, but maybe important.
I would say impossible to aim, not just hard. IMO the end-of-penetration effect makes a lot more sense on something like the upcoming sniper laser, where you can focus down a specific internal enemy part. With the railgun it's basically always random where the end of penetration effect ends up, because there's no way to detonate it on a specific part unless you get lucky.
SpaceCat nop In the era of railguns, fleet play is more valuable than ever.
Second that!
Agreed! And it's one of my favorite things about the railgun. They help make battles a lot less symmetrical than just wall vs wall or triangle vs triangle.
I do still think the railgun could use a small or medium buff, but nothing too game-changing.