Key To Her Heart
In order to get the keycard from the croupier, youre going to need to follow her around town until she hits up a sex shop. After you grab the gimp suit inside, keep following her and wait outside until the gimp approaches; hell arrive on foot, and wont be wearing a shirt, so kill him, grab his...weapon, and head inside to pick up a new girlfriend.
In order to get her keycard, youll have to take her out on dates. You can take her out immediately after you finish this mission - the Steakhouse is your best bet for big love, and is represented by a fork-and-knife on your map - but shell likely require multiple dates before giving with the goods. You can get more missions from Wu Zi in the meantime, so check back every once in a while and treat her nice. After a few dates, shell call you on your cell phone and let you know that shes left the card in her bedroom, so head into her house and grab it.
Dam And Blast
Because all casino heists involve knocking out the power to an entire city - its the law - CJ has to destroy the dam that supplies electricity to Las Venturas. You cant just drive over to the dam and say, "Excuse me, would you mind if I blow this up?" though; youll need to grab a plane from the airport and do a little James Bondish parachuting to reach your destination.
You cant just jump out of the plane when youre directly over the dam; thatd be too easy. Instead, youll have to make it all the way up to a corona in the sky before youre able to bail out. The corona is way, way up there, too; youll have to keep rising all the way from the airport to the marker to hit it. If you cant quite get there, fly past it and make a hard bank to return. When you hit the corona, bail out and orient CJ towards the new marker on the ground below. If youre really good with the parachutes, you might be able to land directly in the circle, but if worst comes to worst, you can just bail into the water and swim from there to the quay.
After making your way past the security guards (youll need to get silent kills on these guys), youll be inside the dam. There are four more people inside here, including two guards that will pace along the left wall. You can take the workers out fairly easily with your knife, but for the guards, youll have to hide in one of the dark cubicles along the wall and wait for them to pass you by before slitting their throats. If anyone sees you, youll have a more difficult time placing your charges on the generators, but you should be able to complete the mission either way, especially if you have body armor. Regardless, plant your charges and hit the exit to complete the mission.
This is another mission thats difficult to beat on your first try, so dont get too discouraged. The gist of it is that you have 12 minutes to track down four police bikes from all over Las Venturas and drive them to a truck. The catch is that you cant, of course, drive more than one bike at a time, and that the truck will be roaming around the city on the freeway, forcing you to catch up to it when you do have a bike in your possession.
The trick here is to know where the truck is, even when you cant see it on the map. It begins its journey on the eastern side of town, so start by grabbing the southeasternmost bike. Since the Packer drives clockwise, you can then proceed to the west, north, and northeastern bikes and get them onto the truck as it passes by their position. Needless to say, if you grab the northern bike while the Packer is on the southern freeway, youre going to be adding a couple of minutes to your commute time. If you go in the correct clockwise order, though, you should be able to complete the mission with over four minutes to spare.
The other big sticker here are the cops themselves. Theyre not going to view your theft of their property too kindly, and if you get to two or more stars, youre going to have lots of problems getting the bikes back to the truck without getting run over. Thus, its important not to kill the cops while youre stealing their bikes. This may be unavoidable, in the cases of the bikes that take off as you approach them, so if you do get a couple of stars, keep an eye out for the star pickups around town that will reduce your wanted level.
Up, Up, And Away
Now that you have your cop bikes for the decoy truck, you need the decoy truck itself. Unfortunately, a street-level jacking is a bit too risky, so youll have to infiltrate a heavily-guarded military base, steal a helicopter with a loading hook, find a truck on the ground, hook it up, and take it to a safe location to be painted. Which, of course, is far preferable to sticking a gun in some armored car drivers face.... This mission has a high incidence of combat, so be sure that you have body armor and plenty of ammo before you head in.
When you leave the casino, jack a car and head towards the base. As you arrive, a Hummer will be coming out, so take the opportunity and drive through the gates as they open. Immediately take a left and drive past the open hangar doors; note the huge number of M4-wielding badasses inside. You can stop the car and proceed through there, if you wish - there are health and armor pickups inside, so its doable - but a more workable solution is to keep heading around the building until you find some shipping crates. If you get on top of these, youll be spotted by some guards, but theyll likely bunch up near the wall, allowing you to use a rocket or grenade to blow them all to hell. When theyre gone, jump across to the wall and fall down; youll now be on the rear side of the hangar, and you can run past the rear doorway and deal with any pursuers as they come out. Or, if youre running low on health and ammo, you can clear out the hangar with your M4 and get the pickups.
Proceed up the steps, killing any guards you find, until you get a message about incoming gunships. Theres a minigun emplacement nearby, highlighted with a red circle, so hop into it and blast the gunships, then grab your own helicopter and jet out.
After you get the helicopter, make your way to the parked security truck and lift it up with the winch. In order to avoid damaging your heli, extend your winch as far down as itll go, then hover over the truck; youll automatically grab it with the magnet when its close enough. When you do have a good grip on the truck, reel the winch in as far as itll go and head out to the airstrip that you own. Youll have to drop the truck into a fairly small circle when you arrive, so go slow, and use the L3 click to level yourself out. If youre having trouble, you can drag the truck into the circle after dropping it somwhere else.
When you have the truck safely stowed, land in the indicated area and save your game afterwards. You dont want to have to do all that again if you do something stupid, now do you?