Don't try buddy. You may not play this game like a normal person.
Update your computer with any parts you can.
the minimal req are:
CPU: Intel Core 2 Quad CPU Q6600 @ 2.40GHz (4 CPUs) / AMD Phenom 9850 Quad-Core Processor (4 CPUs) @ 2.5GHz
CPU Speed: Info
RAM: 4 GB
OS: Windows 8.1 64 Bit, Windows 8 64 Bit, Windows 7 64 Bit Service Pack 1, Windows Vista 64 Bit Service Pack 2* (*NVIDIA video card recommended if running Vista OS)
Video Card: NVIDIA GeForce 9800 GT 1GB / AMD Radeon HD 4870 1GB (DX 10, 10.1, 11)
Sound Card: Yes
Free Disk Space: 65 GB