Hi, welcome to Command and Conquer Wiki! Thanks for your edit to the Guardian GI page.
Regarding RA2: Red Revolution: Kremlin is indeed fortified and garrisoned. I bet you've never tried to attack it with ground forces. Shots will be fired at your units from Kremlin just like from any garrisoned civilian building. Think of as an one-of-a-kind, turret-like building tailored for this mission though.
Indeed, I never tried to attack the Kremlin head-on. I used the cheap nuke method instead xD. --Panzerhund 17:20, November 23, 2015 (UTC)