I understand that unit pathing has been much improved upon in SC2, which hopefully will ease the frustration of unit collision in large clumps. Let's take the following scenario:

A group of immortals are leading a charge against tanks followed by a pack of zealots. When the immortals are in range they all line up and begin to fire.

What will happen when the zealots are given an attack-move command towards the tanks? Will they part the wall of immortals and walk in between them while the Immortals are attacking, or will they be forced to walk around the entire line of immortals to reach their targets in melee range?

Thanks.

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Q u o t e:
I understand that unit pathing has been much improved upon in SC2, which hopefully will ease the frustration of unit collision in large clumps. Let's take the following scenario:

A group of immortals are leading a charge against tanks followed by a pack of zealots. When the immortals are in range they all line up and begin to fire.

What will happen when the zealots are given an attack-move command towards the tanks? Will they part the wall of immortals and walk in between them while the Immortals are attacking, or will they be forced to walk around the entire line of immortals to reach their targets in melee range?

Thanks.

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In that scenario, Zealots will walk around line-ups of Immortals and will attack Siege Tanks.