In order for you to play ShellShock Live on Windows with minimal graphics settings, your computer must meet the following requirements
Requires a 64-bit processor and operating system
OS *:
Windows XP or above
Processor (CPU):
1.5 GHz or faster
Memory (RAM):
1 GB RAM
Graphics Card:
DX9 (shader model 2.0) capabilities; generally everything made since 2004 should work
DirectX:
Version 9.0
Network:
Broadband Internet connection
Storage:
500 MB available space
In order to play ShellShock Live on Windows with maximum graphics settings, you need a computer with a configuration no worse than the following
Requires a 64-bit processor and operating system