Doesn't it do that when used in swarms?
I suggest to not use this with Swarm.
When they fired in rapid succession, as single missile, several missiles will track one target, even though multiple are in sight/ range.
With swarm setting, not
much difference.
Fired with delay, they will track different targets.
EDIT: just tested swarm, with 6 missiles per volley. 30 ships as targets, directly in front. all 6 missiles aimed only at one target.
The second volley, when fired imediatley afterwards, aimed for the same target as the first.
when fired with delay ( the first volley reached the targetwithout destroying it, then second volley aimed for a different target.