_cible = cursortarget;
_palier = 0.75; // 25 de vie
_duree = 7*60; //7 minutes

if (damage _cible < 0.75) exitwith {};//ERROR

for "_i" from 1 to _duree do {
	_cible setdamage ( _palier max ((damage _cible) - (_palier/_duree)));
};