OldFern the storage increases the max amount of energy your allowed to have in reserves, drones are you click on the drone then click where you want it to bomb and it bombs the area, sams only protect against spores, reactors add .2-4 to your total energy collection but are reserves, ment to be placed alongside collectors, a normal collector in a decent location increases your energy level by .1
ally unit upgrades, this is the one issue ive come across in this game. I would say a halt so they dont die by the turrets but then people would build up a swarm of free soldiers and no aliens could ever hope to get past...
I bought ammo at shop but it didnt let me use it. It showed on shop interface it was purchased, it took the cash yet when i left shop it didnt take leaving me with the exact amount of ammo as before(last mission shop)