Hi and sorry for the delay, life called and i couldn’t make enough time to do this for a while, here it goes:
To address somethings you said first:
Not sure what you mean to the missile hovercraft is less versatile then the tank
In the combat sense i forgot to add, with the multiple weapons the tank has it can deal with just about everything on Nauvis, while the missile hovercraft could at best kill one biter at a time with normal missiles for example, it now does it a lot faster but still one at a time.
My original ideal was not the be 100% better in all ways
I agree with this, but hovercrafts feel more like the car conceptually, and i don't think the car and tank are in the same line of upgrades, they serve different purposes, and the tank is already neatly balanced to fulfill the hard combat role, with that said i don't think it makes sense conceptually nor is necessary for any hovercraft to attempt to replace the tank. They could just be upgrades for the car only.
but I guess it should be in the way the vanilla vehicles are 100% better then the previous version.
But is this really true? There are only three vanilla ground vehicles in the game and they don't fully replace each other, if anything the spidertron beats the other options in convenience alone.
I’ve tested against various sized nests with explosive ammo and my conclusion is that, ironically, the missile hovercraft is somewhat equivalent to the tank, because of it’s speed and the greater area of explosive rockets it can actually deal with worms (the main threat in nests) better than the tank, although the tank is still faster at killing things in general, it often leaves more worms alive to damage the tank, and in exceptionally dense nests with behemoth worms the missile hovercraft can cheese them out and stay alive longer simply because it doesn’t get slowlocked to death as easily, although that would be a risky and painfully long nest raid, neither tank nor hovercraft would be an acceptable option for such nests i’m afraid.
So right now the missile hovercraft is not powerful enough to be a straight tank upgrade nor weak enough to be a predecessor, but what i find a bit weird is how sturdy it is considering it’s a supposed to be a hovercraft, it should probably have lower resistances and definitely not have more hp than the tank if you want to keep it equivalent, this wouldn’t even nerf it that much in combat since it already relies on speed, on the other hand if you want to make a straight tank upgrade you’d need to buff it somehow, but the main thing holding it back is that rockets are a lot weaker than tank shells.
Another option, assuming you’d want to change up your mod a lot, is to go with a ‘hovertank’ concept and just make a hovercraft with a tank cannon if you really want it to be an upgrade.
As for the laser hovercraft i did only minimal testing but i can tell that it’s really not suited for combat since it has no area damage, and also not good for mobility since it’s slower than the electric and normal, overall a 4th hovercraft just feels like bloat when, by then, most players are gearing up to leave Nauvis, and on the other side is merely the tiny convenience of having a fast armed hovercraft, i wouldn't use it to kill nests anyway in the same way i wouldn't use the car, at that point the mod is just holding on to the tradeoff of no weapons for speed like it’s sacred.
Considering it uses laser that would make it the ideal candidate for that role of fast armed hovercraft, and it would help to reduce the complexity of the mod a bit by just merging it with the electric.
So those are my thoughts, i might’ve said things in the form of ‘do this’ or ‘do that’ but take everything i said only as suggestions, as always it’s your mod and you get to decide what to do with it, i’ll be happy with just my basic fast hovercraft.