Can Infantry CRITICAL HIT a Building?

please answer if you know. :)

thanks.

|||Do you see a flash of light on them at any point? That is crit hit.
|||oh is good to know that tha is crit, but i don`t have crit items, im thinking to get one, but first i would like to know this.
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while im not sure on this one, it seems units without crit upgrades or items will not do crit damage, or atleast so rare it might as well not be there. need confirmation on this one

they can do critical strikes against buildings