Alright, thanks, I thought it was with ALiVE :)

OPFOR - CSAT, just the default to test the script

 
8:16:58 "[INS] UNIT TYPE = any"
 8:16:58 "[INS] Adding init to MAN"

Tested with empty helicopter and AI controlled helicopter, all found men are still counted, vehicles aren't still

It's not even printing the unitType for vehicles in onKilled.sqf

description.ext

class Extended_Init_EventHandlers {
	//All
	class All {
		init = "_this call (compile preprocessFileLineNumbers 'events\onKilled.sqf');";
	};
};

events\onKilled.sqf

private "_unit";
_unit = _this select 0;

if ((side _unit == east) and (!isPlayer _unit)) then {
	_unitType = typeOf _unit;
	
	diag_log format ["[INS] UNIT TYPE = %1", _unitType];
	
	if (_unitType isKindOf "Man") then {
		diag_log "[INS] Adding init to MAN";
		[_unit] execVM "events\man_killed.sqf";
	};
	
	if (_unitType isKindOf "Car") then {
		diag_log "[INS] Adding init to CAR";
		[_unit] execVM "events\car_killed.sqf";
	};
	
	if (_unitType isKindOf "Truck") then {
		diag_log "[INS] Adding init to TRUCK";
		[_unit] execVM "events\car_killed.sqf";
	};
	
	if (_unitType isKindOf "Tank") then {
		diag_log "[INS] Adding init to TANK";
		[_unit] execVM "events\tank_killed.sqf";
	};
	
	if (_unitType isKindOf "Helicopter") then {
		diag_log "[INS] Adding init to HELO";
		[_unit] execVM "events\helicopter_killed.sqf";
	};
};

events\car_killed.sqf (example, they all look like this)

private "_unit";
_unit = _this select 0;

_unit addEventHandler ["Killed", {
	private["_unit", "_killer", "_unitFac", "_killerFac"];
	_unit = _this select 0;
	_killer = _this select 1;
		
	_unitFac = side (group _victim);
	_killerFac = side (group _killer);
		
	_killMoney = 1500;
		
	_killer globalChat "Killed enemy car +$1500 to Operation Budget!";
		
	B_defensebudget = (B_defensebudget + _killMoney);
	publicVariable "B_defensebudget";
}];

The above code works for all enemy man units; but it refuses to work on any vehicles.
Is there anything I'm doing wrong?