Grand Theft Auto IV/Vlad

The following are not walkthroughs (which you can find all over the Web) so much as tips for completing difficult missions when all else fails. These are tips you probably are not going to find anywhere else.

Bull In A China Shop
There's no reason to have any trouble with this mission, assuming you go back up the block to where you are prompted to pick up a brick, then go back to the store, pull the Left Trigger ("LT") to bring up an aiming circle and use the Right joystick ("R") to aim at a window, then pull and release RT as prompted.

This is just a training mission for how to handle grenades.

Hung Out To Dry
Up until now, missions have been for training purposes and not difficult. This one will be harder.

When you get to the laundromat, a cut scene takes over and when it ends, the target runs out the back door. A new Xbox user will probably have trouble just getting Niko to run straight out the back door without running into a wall.

Then you have to break into a car, back up, and get out to the street. Meanwhile, the target is well on his way and you may not even know which street he took.

Let's take a timeout now — Someone having trouble with this mission may decide to try to improve his odds the second time through by going around back first and blocking the target's van, putting a faster car by the door aimed at the street, etc. None of that will work because the game CHEATS by making such things disappear. Right or wrong, though, this is what the game does, so forget about trying to pull tricks like that.

One thing you can get away with is pausing the program as often as you want, even in the middle of a car chase. Then you can bring up the map, see where you target is and what streets you have to take to get to him. And since the action pauses, he can't get any further away from you. This mission is good practice for that technique.

Even if you don't make a clean exit from the laundromat, by frequently checking the map, you should not have any trouble catching him.

Clean Getaway
Before going up the stairs to the subway, look to the right of the stairs for a baseball bat. When you see weapons highlighted in red, just walking up to them (or over them) adds them (and/or their ammo, if any) to your stash.

When you get to the guys with the car, instead of fist fighting them both at once, take out your bat and bean them. Easy-breezy. Plus you get to keep the bat.

Ivan The Not So Terrible
This is a mission designed to train you in the techniques used, so it's not particularly hard.