In order for you to play Spec Ops: The Line on Linux with minimal graphics settings, your computer must meet the following requirements
Operating System:
Ubuntu 14.10, Mint 17.1 or similar Linux Distribution
Processor:
Intel Core 2 DUO 2.4 GHz / AMD Athlon X2 2.7 GHz
Memory (RAM):
4GB
Hard Disk Space:
6 GB Free
Video Card:
NVidia/AMD OpenGL 4.1/OpenGL level 3.2 compatible Video RAM: 512Mb
Sound:
ALSA/PulseAudio compatible
Recommended Graphics DriversnVidia:
NVidia 340.65 or better. 331 series are unsupported.
AMD:
AMD Catalyst (aka fglrx) 14.12 or better
MESA drivers and
Intel Graphics are not currently supported.