18. Old Man Gravelli
Well, only one guy with work, and that is Gambetti. Go there, which is in Broker, at the hospital.
Drive over to downtown Algonquin, get out to meet Bobby, then follow the lead car. Of course the new detour is a trap. Once you have control, kill the guys behind you, then the ones in the open in front of your cover. Then run across the street to the other alleyway, but be ready for more thugs to show up. Kill the new enemies and the old ones, but be sure to get the ones up on the roof behind you.
After that, get in the car and drive Bobby south, but more thugs show up. All I did was park in the street and ice all of them from the comfort of my car - it worked, so I don't know. You could always just get out and shoot, or even run all around the city trying to shake them, but the city hall is just a few blocks away from the trap, so don't go too far away. Once those guys are dead, drive him to the marker and you're done.
Back to the old man.
Yes, the rice box is all the way on Alderney, so go there. Go in the restaurant and then just start blasting if you like. Post up at the pillar in the dining area and pick off the guys up top, then watch look up and behind you as you go up the steps for two more guys to pop up. Watch for a guy to come out of the door on the right, then go in the office. Point the gun at the manager and grab the body armor on his desk.
*NOTE: Thanks to Coty Roschevitz, he said that after you talk with the manager you can go outside and to the back of the building and blow up the cars. Then when you come back in to go through the kitchen and chase down Kim, he will come outside and be on foot. Good tip.*
Now come back out and blast your way to the kitchen doors, which are up on this level to the right. Two guys will be waiting behind the doors, then run through to try and catch Kim while he is going out. If you can shoot him before he takes off in the car, great. Otherwise you'll have to jump on the bike and chase after him. If so then just target the driver's area and he'll be dead quickly.
Make your long trek all the way back to Gambetti.
*NOTE: You may want to save right here, in case you want to see the alternate ending. That is because as soon as you finish this mission, you are forced into the next one.*
Liquidize the Assets
Well, at least you'll know how to get from Broker to Alderney. Get over there and to the south of Alderney. Once you get the rundown scene of the enemy stronghold, you could run around the whole block and never find the ways to get in the building. No matter what you do, you should find a way to snipe the sniper that is on the roof of the northern building.
The blunt approach is to go to the east side, find the fence more toward the south, and ram through it. You not only run right into the teeth of the enemy, you are also in prime sniping position from the guy up high, not to mention the other guys on the rooftops. If you can kill everyone, great; if you just blow the vans and leave, that works too.
However, the better option is to go beside the gate fence and look for the lower fence on the right of it. Hop over it and run to the end. Jump on the shack, then the top of the stone fence, careful not to fall off, and then start jumping up the air vents to get to the top. Once on the roof, kill the guys up here, climb the ladder, get to the sniper's position, crouch, and then you start sniping the guys down below. Grab the body armor up here and then take the stairs to get to the ground. Then clean up any survivors as you either frag or shoot the vans to death. It's not that hard of a mission if you do things this way.
That will be all if you've followed me. No more missions, just the final set to end the game.