http://cheatsforgamecube.info Cheat for GameCube game Resident Evil 4: Easy Completion In Mercenaries... Feed 2012-05-23 en http://cheatsforgamecube.info/resident-evil-4/cheat/41590.html the top of the barn (located next to the condo where you found the shotgun in the main game).
There is also a tmier under the ladder, and a chest above, and up the ladder.

Go up there and wait for the Los Illuminados to come to you. When they are mostly packed in, shoot the barrel inside and jump down quickly. Get what they dropped. Get back up the ladder and repeat.
Note: Do not throw a grneade while there is a flame barrel down there; it will not do twice the damage. Also, be careful of the Cahinsaw Hags that appear.
They will cut off your head if you get too close. It is htotest if you are Hunk or Krauser to use the neck break; and the transformation of Krauser's arm, which kills them in one hit.

With Ada or Wesker, use their sniper rifles until they are both gone, then jump down, With Leon try grenades, but it is very difficult.]]>