One of the best open world games I have played in my life. The game wraps up around the cop, Wei Shen who returned to his homeland Hong Kong after a long trip. He infiltrates the triads and tries to find the big criminals among them to bring peace Hong Kong. As he starts the investigation, he faces his past, finds a family where he can stay and learns about the culprit who is behind all the bad things.
Graphics is quite good even to this day. The combat mechanics is the most enjoyable thing in this game. Various skills makes the combat more interesting including some gruesome enviromental finishers. Gunplay is also not bad but not good either. There are some optional missions which includes catching thugs, racing, helping out some people etc. None of them seems annoying or boring to me. It was quite fun to pass some time beside the main story.
Anyway, this game is quite great. If you haven't tried it out yet, you should.