Complex sentence: Each version is subtlety different to play to the strengths of its home system, which includes a link-up feature between the PS2 and PSP versions, a different mission set for the PSP and Xbox Live support on the Xbox.
Split into simpler sentences: Each version is subtlety different, to play to the strengths of its home system. This includes a link-up feature between the PS2 and PSP versions, a different mission set for the PSP and Xbox Live support on the Xbox.