That's fine !!!
No solars / wind, but a dirtbag till you get next to it.
You don't even have to hide the radar blips :D
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I think it doesn't match the purpose if anyone scout at you with raiders.
But maybe you can prevent ghosted buildings because a Stardust looks like a Warrior and the enemy don't expect a immobile building there.
Against air scouts it would also be fine ...
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It would be nice if you can cloak or spawn wreckages.
They doesn't affect the targets of combat units.
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Or we can spam radar blips with low priority - especially for things like long range berthas OR adv. radar towers / sonar airplaines + nukes ...
Things like full missle silos, level 4 coms and Big berthas would be nice.
If you instant build a thing with Scrambler, it is idle and dies together with Scrambler or if you morph Scrambler.
And the Scrambler can only make buildings if it is morphed to a building.
The enemy would try to kill these things for any price.
Instead it there is a Scrambler with only 300 metal and remove the building if it dies itself.
And if it is a unit, it costs 500 metal and can morph into bantha, dante or the rocket unit for 4k metal.
The only restriction is how much energy you want to spend for it per second.
We can consume more energy for more expensive buildings / units.
If you think that banta is op for a 500 Scrambler than we need light and heavy versions of it, but I think 500 would be ok because it's unarmed and dies easily.