Im stuck and confused on the wang fou incident, Wheres the restaurant and why do you have so many objectives?

The reason is because you're trying to start a war between the Red Dragon and Blue Lotus triads. In this mission you have to kill the Blue Lotus negoiator to make it look like the doing of their rivial gang. The restraunt will have several red dragon members, a limo or 2, and 1-2 Blue Lotus members out front. However only the negoiator and three of the blue lotus members and multiple red dragon members will be inside (you will need to discreetly kill a red dragon member outside and take his clothes to get in). The other blue lotus members are outside, two of them being not too far from the start of the level, I recommend taking their micro-uzis, should things go awry inside and outside the restraunt but don't get too trigger happy.