Hi,
I do not know if this has been discussed before so please don't kill me for bringing it up.
Factories are a key part of the sup com Gameplay but are Factory HQs really necessary?
My answer is no, no they are not necessary and actually disruptive to the gameplay, but let us discuss the pros first.
Factory HQs give players the opportunity to snipe the enemy's mobile unit Tech level and reset it back to T1.
While this is true on a technical level id say with 90% certainty that this will never happen in any game because HQs are built almost at the center of your Main base which would mean that they are more defended than your ACU, so if a player has the chance to snipe your HQ he also has a bigger chance at sniping your ACU.
Next up, this isn't really a pro nor a con. Factory HQs have a 25% longer build time and thus prolong each tech phase.
This is just a small side fact but may have an unnoticeable impact on gameplay, you can form your own opinion about this.
Now the cons,
They break templates.
If you have a factory HQ in your Template, that template will not appear in the list.
They are annoying to implement in ai scripts. When creating Factory upgrade scripts you will have to write additional code which may have a performance impact.
They are broken. you cannot double click select them and support factories at the same time and
not only do they not give you any rebuild bonus but they are also missing animations and are also not very nice to look at.
They are useless in later gameplay. They are except maybe useful as an expensive wall.