One of the confusing points here -- atleast, to me -- is how you are using the word model.
So like, are you looking to use these splats during a custom animation of a model you are converting, or replicating, from Starcraft? If you're referring to the animation or model itself, I think this is just the blood alone. I don't remember what part of the process controls what type of blood a unit bleeds in game, whether that is model data or not - it seems from a glance at your prof you do some model work, so maybe that is what you are referring to or something you would know.
Either way, I think OVO outlined the usecases for these models in-game quite well. You can use triggers to spawn them during a unit's death animation, which can also be incurred using triggers, for instance; I think thats what the EventObjects are for, while the Planes are a more standard model that can be manipulated using like, dummy units for instance, or spell effects.