Fumo needs us to go and retrieve some crystal meth that has been left, unprotected, in a drugs lab. The people making it were injured in an accident at the lab, so we need to get in there before anyone else and lock it down.
From the second the cut scene ends you have 65 seconds to get there. Luckily the lab is also in the favela, so it shouldn't take you too long to get there (though they are a horrible maze!). Upon arrival it is clear that someone else has got there first. Clear out the intial area below the stairs, then move up them into the next room. You'll have more guards to deal with, but also some body armor to collect behind the large vat on the upper floor.
Take out the enemies below and check that there aren't any in the next corridor - once you've cleared the whole place, you'll get a cut scene and the mission will end.
Reward:: 12,500
I can't seem to kill the first people at the door. So I tried an RPG to take them out but turns out you get blown up if your in cover when you fire it.