R.I.P. Totalbiscuit. People associate proxy Siege Tank with him.

Here is a proxy Siege Tank build used by HuT against Probe in the recent WCS Challenger.

Build order

14 – Supply Depot
16 – Barracks
16 – Refinery
@100% Barracks – Reaper and Orbital Command
@400 mineral – Command Centre (@100% – Orbital Command)
@100 mineral – Supply Depot
@100% Reaper – Marine
@100 gas – Proxy Factory
@75 mineral – Refinery
@100% Marine – Reactor
Constant Marine production
@100% Factory – Tech Lab on Factory, and proxy another Factory (@100% – Tech Lab)
32 – Supply Depot
Constant Siege Tank production

Move out with Marines and Scvs when the third Tank is starting. Build Bunker and all-in with Marines and Siege Tanks.

Watch the game in the vod below. (Thanks to /u/Terran4Lyfe, I fixed the twitch vod!)

This is clearly a cheesy build. It requires Protoss to not scout it. Terran might have a hard time if there are Stalkers at the Terran front door during the move out.

The effectiveness depends on Protoss’ build too. If they go for Stargate and see there is just a Barracks in base, they will be cautious. However, they may not have the units to deal with the push. The best counter against this is a Robotic Facility build, as Immortal is the answer. The rest is mainly down the surprise element and execution, so there really isn’t much for me to discuss about.

Thank you, John.