B92 has recently aired a documentary "The Unit". It tells the story of how Milosevic intervened in Bosnia and Croatia.
It began after the Plitvice Lake incident at the end of march 1991. Here for the first time the Croats for the first time enployed their army against the Krajna Serbs. The battle itself was unconcluded but it was clear that the Krajna Serbs were in the long term not able to resist the Croat army.
So Milosevic - who until then only verbally had supported the Krajna - now felt the need to give some kind of them military support. He had also more opportunistic reasons to do so: on march 9 1991 there had been protests and riots in Belgrade led by Draskovic. Supporting the Krajna was a nice diversion of the attention. The result was the MUP Special Operations Unit (JSO), a.k.a. the Red Berets - the subject of this 3 part tv documentary. The Tigers and the Scorpions were subunits of the Reb Barets.
This unit - that included Franko Simatović-Frenki and Arkan - operated in rather small units of 40-60 soldiers. Their strategy was to go to a place, wreak chaos and train local militia to take it over.
The whole unit was never bigger as 3000 men. The soldiers were on short time contracts - so people who developped some conscience could easily be sent home.
I expect the people at ICTY to watch the documentary with mixed feelings. On the one hand it shows that Milosevic indeed had an active role in the wars in Croatia and Bosnia. On the other hand there is not a trace of "Great Serbia".