Yep, the key way money. Just build 2 or 3 Harvesters right at the beginning of the game, and you're good. Also, FOXHOLES!!! O.O

Has anybody managed to play the Croatia mission on hard in Tiberium Wars? I managed to keep my turrets alive and achieve the bonus objective, but once I have to save the MCV from the town, it gets hard. I cannot spare as many units as required to guide them to saftey, so I keep fortifying my base. But after a certain limit of time, the enemies go over to flamethrowers and flametanks, which makes my bunkers and turrets pretty much useless. The same happens the moment I take control over the reinforcement squad with the MCV... Anybody who can help me, it would be appreciated.