As you can see, there are many pieces to this. Dragoons, siege tanks, zerglings... they're all here.

A close up of the siege tanks accompanied by vultures.

A Zerg guardian

A carrier, complete with intercepters. I believe the units at the bottom are wraiths.

The zerg strategy for victory is to win by sheer numbers. If you have sharp eyes, you can even notice a defiler near the front.

Close up of Zerg Hydralisk:

Close-up of Zerg Mutalisk:

Close-up of Protoss Scout:

Close-up of Terran Siege Tank:

Close-up of Zerg Ultralisk:

|