It would be nice to have a gauge for the silo and refinery to let you know how full they are.
They tried to do this strictly on the models in Tiberium Wars, and it really peeved me having to zoom in all the time to see how much was in it, so the gauges would be great.
Also, to prevent Silo spamming, it would be nice if the refinery and silos held a lot more than they originally did.
When you build a helipad the orcas hover over it instead of staying on it, so that needs to be fixed.
When the orcas destroy a target but don't run out of missiles, they just hover there. This was really annoying in TW.
When you select a group of orcas and tell them to go to a helipad, only one will go and the rest will just stay there, instead of them all going back to their respective pads.
I think that's it for the moment.