Titanfall 2 script to create a weapon tracer with an invisible weapon or none at all

CreateWeaponTracer.nut

// thanks to The peepeepoopoo man#3301
// basically ripped out of _arc_cannon.nut
void function CreateWeaponTracer( vector startPos, vector endPos, float lifeDuration, asset tracerAsset = $"P_wpn_tracer" )
{
	entity cpEnd = CreateEntity( "info_placement_helper" )
	cpEnd.SetOrigin( endPos )
	SetTargetName( cpEnd, UniqueString( "arc_cannon_beam_cpEnd" ) )
	DispatchSpawn( cpEnd )

	entity tracer = CreateEntity( "info_particle_system" )
	tracer.kv.cpoint1 = cpEnd.GetTargetName()

	tracer.SetValueForEffectNameKey( tracerAsset )

	tracer.kv.start_active = 0
	tracer.SetOrigin( startPos )

	DispatchSpawn( tracer )

	tracer.Fire( "Start" )
	tracer.Fire( "StopPlayEndCap", "", lifeDuration )
	tracer.Kill_Deprecated_UseDestroyInstead( lifeDuration )
	cpEnd.Kill_Deprecated_UseDestroyInstead( lifeDuration )
}