Why are you attacking the planetary and ignoring the SCVs with a splash damage unit?
If you cannot reach the SCVs, then why are you charging your Ultralisks into a wall? Ultralisks are notoriously bad at breaking walls thanks to their large collision size and the resulting pathing.
[/quote=“Wade-11275, post:6, topic:18803”]
PF is tier 1, Ultra is tier 3, how does that make sense?
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Well first, your assumption that “tiers” (and those are an arbitrary, inconsistent concept) mean anything in this is flawed. Unit interactions (counters, etc) are determined by units’ roles and functions, not by their placement in the tech-tree.
Second, Planetary Fortresses, despite their placement in the tech-tree, are mostly a mid to late-game turret. They typically aren’t feasible to use in the early-game because they are very expensive to build and conflict with Terrans’ macro mechanic.
Planetary Fortresses also don’t stack up well for decent DPS like other turrets can; so they depend heavily on that splash or on extra durability (from armor, repairs, etc) to be effective.
You break Planetaries by:
- Bursting them down with high burst or high DPS units (Banelings, DTs in decent numbers, etc)
- Wearing them down from outside their range (Lurkers, Biles, Brood Lords, Tanks, air units, Swarm Hosts since the Swarm Hosts can launch and run from a safe distance, etc); depending on the case you may force repair time, kill SCVs and defending units, or (if the opponent cannot stop you in time) take down the structure.