OS: Windows 98/2000/ME/XP
Intel Pentium III / AMD Athlon, min. 800 MHz
128 MB RAM
1,5 GB HD storage
min. 32 MB graphic card.
Compared to nowadays requirements, that's just nothing.
Seriously. GC 2 was made seven years ago! Why shouldn't it be possible to make C&C like it (at least the graphics)?!