Pretty, but isn't this sort of irrelevant with Dune Dynasty building the same thing into the actual game?
Uhh... Warcraft II did that, but C&C did not. In C&C, left-click is context-sensitive command; move when clicking terrain, attack when clicking an enemy unit/building, and select when clicking a friendly unit/building. Right-click deselects the currently selected object.
Right-click commands weren't introduced into the C&C series until C&C Generals.
No... helipad costs 1500, and the helicopter on it is worth 1200. So the cost of the actual building according to the game is only 300. Meaning, it builds as fast as barracks or a power plant, and consumes five times as much tiberium in the process.
That's a whole lot of rough dunes, wow.
As for the spice, I noticed it changed in Dune Dynasty's skirmish mode as I added more houses, and the author confirmed that the game somehow adjust that so more houses have more spice.