Long ago, when the word 'Hiigara' rang only as a hollow dream, the kiith of Kharak never imagined they would walk the Path to Victory. But, when they reclaimed their Homeworld and proclaimed themselves 'Hiigaran', they believed they had reached their goal. How wrong they were. 150 years after Hiigaran landfall, conflict rages across the Galaxy... Path to Victory is a multiplayer and skirmish mod for Homeworld 2 that adds new units to both Vaygr and Hiigaran Races as well as enabling the Keepers, Raiders and Kadeshi as playable races.
While the video shows the effects of these wonderful missiles a little better, you miss out on the nice effect of the missile falling apart because it's so small.
So if you don't like watching videos or want the added detail, here's a mini slideshow of the Cluster Missile effects.
Would it be possible to have them form a smiley face pattern when separated? :)
Sadly, no. There's no way to control how the projectiles spread beyond that the angle they spread at.