1. Заходишь в race_orc.inl ищешь:
	// Critical Grenade
	iSkillLevel = SM_GetSkillLevel( iAttacker, SKILL_CRITICALGRENADE );
	if ( iSkillLevel > 0 )
	{		
		
		// Can only do this if the user has a grenade
		if ( SHARED_IsGrenade( iWeapon ) )
		{
			
			// Then we're clear!!
			if ( OR_CriticalGrenadeAllowed( iAttacker ) )
			{
				//static iMaxHealth,iHealth, iBonusDamage;
				//iMaxHealth = get_user_maxhealth( iVictim );
			//	iHealth = get_user_health( iVictim );
				static iBonusDamage;
				iBonusDamage = floatround( float(iDamage) * p_grenade[iSkillLevel-1] );
				
				//client_print(0, print_chat,"MH: %d | BD: %d | D/MH: %f )",iHealth,iBonusDamage,float( iDamage / iMaxHealth ));
				//client_print(0, print_chat,"H: %d |BD: %d |D: %d |D/H: %f )",iHealth,iBonusDamage,iDamage,float( iDamage / iHealth ));

				// We don't want to do more damage than the user's maximum health
				//if ( iBonusDamage + iDamage >= iMaxHealth )
				//	iBonusDamage = iMaxHealth - ( iDamage + 1 );
				
				// Damage the user!
				WC3_Damage( iVictim, iAttacker, iBonusDamage, iWeapon, iHitPlace );

				// Make the user glow
				SHARED_Glow( iVictim, iBonusDamage, 0, 0, 0 );

				// Lets make a screenfade
				Create_ScreenFade( iVictim, (1<<10), (1<<10), (1<<12), 255, 0, 0, g_GlowLevel[iVictim][0] );
			}
		}
	}

После строки WC3_Damage( iVictim, iAttacker, iBonusDamage, iWeapon, iHitPlace ); дописываешь:
WC3_StatusText( iAttacker, TXT_SKILL, "%L", LANG_PLAYER, "WC3_ORC_CRIT" );

2. Компилируй плагин
3. В ланг файле cssbWar3ftMod.txt добавь строку:
WC3_ORC_CRIT = Вы сделали КРИТ!!!

Все)))