[JackintheBox]

The following will be pretty spoily so read at your own risk:

1.Doc

In the Campecino hospital is a Doc which wont heal you, but you can talk to him.
He has a sick brother, needs medicine and you can offer to get it in the Cali Cantinos hospital.

If i remember correctly there are 3 ways to get the meds.
You can either pay the bad doctor 5 or 10k eldo, im not sure right now.
Or you can talk to the receptionist, learn that hes a sick rapist, kill him and get the med´s as reward(you can also rape her on top of that and wont loose the reward...god damn developers!)
For this to work, you need a silent weapon, close the door of his office and the hall doors and do it at night like 3am.
Also none of your mercs can be seen anywhere on the map, hide them somewhere.
Very buggy but will work eventually if u quicksave before shooting, similar to the "replace leader" mission you do for Tanya in Ciudad de Oro.

Lastly you can rat out the receptionist to the Doc and he will "punish" her....
You either get the meds or you can buy em cheaper, not sure right now.

2. Mechanic
Go into the bar in Ciudad de Oro.
Theres a guy in a blue overall talk to him, listen to his story and offer him to help.(if he has no special dialouge youre not advanced far enough CGL wise)

Now you have to find and kill the bandits who screwed his life.
First one is in Santa Maria, there should be a lone bandit guy somewhere in the slums labeled "the elder" or something.
He has dialouge about the mechanic and all, just snuff him.

Take a stroll to Sagrada(the middle town) and waste the bandits that are hanging out in the parking lot, not hard to find.

The next guys are in Olvega, a bunch of Bandits next to the hospital i think.
Just waste em, though you might wanna set up your guys in nice positions before you open fire.

After that stroll over to the drug barons map, and waste the bandits around the small hut on the side.

Lastly venture to the Plantation of the Baron and snuff the bigger group of bandits outside the actual plantation camp.
Again set your guys up right, and notice that you can place guys on top of the hill in the flowers to flank-snipe the bandits.
Easy as pie..

Afterwards back to Ciudad de Oro, tell him the good news and youre done.
Supposedly you should figure this out by listening to the dialouge of the first guy and by some bits and pieces from the others.
I found that to be bullshit^^