[MortAr-]

Exp

Events

Unit - A unit Dies

Conditions

((Killing unit) is A Hero) Equal to True
(Owner of (Triggering unit)) Not equal to (Owner of (Killing unit))
And - Any (Conditions) are true

Conditions

(Unit-type of (Triggering unit)) Equal to Footman
(Unit-type of (Triggering unit)) Equal to Rifleman

Actions

Set Exp = (Random integer number between 30 and 140)
Game - Display to (Player group((Owner of (Killing unit)))) for 3.00 seconds the text: (You gained |cffffcc00 + ((String(Exp)) + |r for killing this unit.))
Hero - Add Exp experience to (Killing unit), Show level-up graphics

Otherwise, create multiple IF/THEN/ELSE handles for every unit, or multiple trigger for every unit.