Raiders have around 3k more range than bombers if I remember correct. But when I click attack, they move closer while shooting, and exactly stop at the range where bombers can also shoot. Also, when you move your raiders in a safe zone (9k-6k=3k range, safe range for your raiders) and allow them to fire at will, they just don't, till they also get some fire back. I think there's a bug, because if you hold Z key pressed down, you can see range of your raiders, and wonder why they aren't shooting. I haven't noticed this with other ships (since raiders are somehow-squishy, having a good range, and fast, so I mostly focus on them to keep them alive) but this is totally irritating. Maybe that range increase (+2k range to all ships) did something here?