What happens?
When you are in San Andreas at this point you will find the warehouse. When you enter the garage under the ground you will be shooted by Vagos immediatly. If you kill a Vagos man the mission will start and all the Vagos in the garage will try to kill you. If you killed them all you need to take the burrito and bring the burrito to your dealer. The dealer is not far away from the church located. When you leave the garage, some new Vagos will try to kill you.

When you are at the dealer he gives you some money for the drugs you stole. The money you get is random.

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Update V1.1

I made a fast update to let the mission be much easyer to play.

These are the things I put in:
 - Stronger security (High health, immune to headshots)
 - You can only play the mission with the AK47, cause else the mission is too easy (like you come in with a minigun).
 - Shorter cutscene, the cutscene at the end is way too long and boring while that man is walking. Now it is much shorter, that's better for the user to play. I made it three times shorter then first.

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Update V1.2

Some new updates have been added to the mod.

 - More security (+15 security Vagos).
 - The security is walking in the warehouse to make it more real.
 - The security is wearing different weapons (Colt45, Bat, MP5 and AK47)
 - When you stole the Burrito, you will be followed by 2 Mavericks.

 - A mission passed bug.
When you first was wasted while in the bus the game said 'Mission Passed'. Now I changed it into 'Mission Failed' and when the Buritto is wrecked while in the garage the mission started again immediatly. I put in a check to give you some time to get out.

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Update V1.3

The last warehouse I will make.
 - A total new warehouse in Los Santos.

You can find the location in the Winrar file.

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Update V1.4

- Fixed some irritating bugs.

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For more information watch this topic.
http://www.gtaforums.com/index.php?act=ST&f=65&t=427062