8 — Barracks
9 — Supply Depot
10 — Refinery (Gas)
12 — Supply Depot
@ First 100 Gas — Build Factory
@100 Gas — Continue adding more Factories as resources allow.
@100% Factory — Train 1 Vulture, then build a Machine Shop (Factory Add-on).
@100% Machine Shop — Research Mines if facing Protoss (PXX). Against heavy Terran (TTX), prioritize Vulture Speed instead.
@100% Mines or Vulture Speed — Begin researching Siege Mode.
4:00 Minutes — Build an Engineering Bay (Essential for defending against potential 5:30 Reaver or Dark Templar attacks).
Active Vultures: Your Vultures must be constantly applying pressure. They should:
Mine the Choke: Once Mine research completes, immediately mine the Protoss choke point. If you manage to push your Vultures inside their base, mine near their Gateways to disrupt production until Siege Mode is ready.