Grand Theft Auto IV

After receiving a mission from Jacob, take a cab to the location of the car. Get in quickly and hail the same cab to the location of the drop point. Repeat 10 times.

Note: sometimes you are required to get to a drop point and then lose a wanted level. Just jack a nearby car and drive off.

After Jacob trusts you enough you can start doing delivery jobs for Jacob. To do so select Little Jacob in the phone book and choose the "Job" option.

There are 10 missions total, they all start from the Homebrew Cafe where you take Jacob at the end of the mission Concrete Jungle. From my experience the missions fall into 3 main types:

*Simple Deliveries
These are the most pleasant of the deliveries as they are just drop off the drugs to a buyer. Then you can walk away.

*Police Stings
Similar to the simple delivery you will drop of the drugs but then the police will show up. You have to lose your wanted level to complete the job. Most deals happen in alleyways, so look for the exit the police aren't covering make it to the road and jack a nearby car using the alleyways it can be possible to lose the police on foot.

*Rival Gang Busts
These are possible the most difficult variant, for this reason I always went into the delivery jobs with body armour and full health, For me these missions always seemed to be when it was drop the drugs in a stash for someone to collect later. When Jacob gives you the job he should describe it as such. When I saw it was this mission type I would get the shotgun out ready, as soon as the cutscene ends you will more than likely be attacked from both sides. Try and concentrate on one side first so that you can find some cover and clean up the rest of the gang.

Most (All?) of the different variations require you to drive in a time limit to the drop off point. This can actually be quite difficult to achieve as often the drop off point will be hard to reach "from the road".

One way to make the missions much simpler is to call Jacob for a job, then hail a taxi to take you to the delivery car, as soon as Niko gets out of the taxi hail it again. Jump into the car containing the drugs and immediately back out again. Now jump into the taxi you hailed previously and "skip" the journey to the destination, just complete the final stint of the delivery on foot.

Keep requesting jobs from Little Jacob, there are 10 jobs you can receive from him. They become more challenging as you approach the final one, but they're still reasonably easy to do.

Beware that Jacob may not give you a job to do if you request one at 2am or something.

If there is a job that seems particularly hard to get there in time, all you do is get in the car and then out immediately and if there is a taxi driving past then catch it to the location and it will be a short walk to the client. No time will pass while you are in the taxi