Find the Sacred Headstone is a quest in Jagged Alliance assigned to the player after Secure The Sacred Burial Grounds.
Jack will ask you to retrieve the Sacred Headstone of Senor Los Makiwahan. The longer you put off this quest, the more natives will quit.
SPOILER WARNING. The game won't tell you directly where to find headstone. But it gives you a little hint in a coded message you can find in Sector 27.
This is a quest where you must go to the sector all the way to the south-east in Lucas' fortified island ie. Sector 23. It should be on the second small island in the northeast of the sector. If you somehow already have captured Sector 23, Santino will take the headstone to any of these sectors: Sector 13, Sector 21 or Sector 22.
Infiltrating[]
Capturing this sector is definitely not easy. If you go by the traditional route, you will have to at least capture up to Sector 22 or Sector 13 to assault Sector 23. Enemies in this sector are well equipped with M-14s and M16s and have armor like Spectra Shields so be ready. There are land mines planted around the small islands and near the first bridge, especially around Senor Los Makiwahan's headstone, so taking a explosives expert with a metal detector.
Alternative Method[]
If you really need to get the headstone cause of warnings and quitting natives, capture Sector 24 ASAP. Then, send your team to the island there towards the northwest. Don't pick up any items from Sector 24 yet and discard unnecessary equipment on the shore so that little stuff gets damaged. Make sure you bring an explosive expert with a metal detector. Place your team in the water to the west of the island, definitely equip them with knives/combat knives. Traverse your team west to sector 23. Swim (and hopefully they can kill Metavira Eels along the way) until you reach the first northeast island. Don't bother to pick up the detonators on the island. Send the metal detector guy down the bridge, sniffing for mines. The headstone is on the second island, and if the merc is good, he or she should be able detect the mines. Pick up the headstone, send the merc back up, get your team to swim back east to sector 24 and volia! You have the headstone without needing to capture sectors 13 or 22. If you are lucky, enemies should not appear. On the safe side, bring at least one marksman or rwoman with good weapon to act as a sniper. You can assault Sector 23 another time without worrying about the Headstone.
Completion[]
If you have the headstone in one of the merc's inventory by the end of the day, Jack will congratulate you for retrieving the headstone.
The pool of guards and tappers will drastically increase, or max out and remain at 500.
Note[]
Santino's men will attempt to aggressively regain control of the sector.