The point about seeing under repulsors needs addressing I guess. You can do this, but not if you're in an elevated position. It still doesn't help if the target is out of sight and it doesn't do anything about cogitated martyrdom.
Realistically, an IH player is going to hate on enemy eliminators pretty hard. They won't get all that many shots. I guess this is an argument for vindicares, which get to use the character rules to stay alive.
Still, if you think sniping the characters will work, give it a try. I've already said why I don't think it will but both of us are just theorising now and it can only be proven in play. Good luck to you.
I do not thing snipers are an auto-win against the IH deathstar but I do think they are a viable counter that means the game will come down to relative player skill and luck. Which is as it should be. I definitely do not think any part of Repulsors not blocking LOS needs addressing - it is an inherent weakness that most vehicles with the Fly keyword share.
The very existence of Eliminators will force the IH player to put the Ironstone on an expensive character like a Gravis Captain - because the cheap Ironstone caddies are prone to dying to the Executioner rounds even when hidden.
Sorry, I don't mean it needs to be changed. Yes, you can see under a repulsor, and that's totally fair enough. I just meant your point needed to be addressed because it's a good point.
I don't think anyone claims that you can't see under them. I certainly don't. I do claim that LoS-blocking terrain exists, and that it doesn't actually hamper the IH player all that much to deploy with his characters out of sight.
I actually like eliminators. It's true that IH players will want to put the ironstone on a tough-ish model, not just a Lieutenant. This kind of forces them to take a 3rd HQ (after Feirros and the LT) in the form of a captain of some kind. A Gravis Captain might be the best option.