But doesn't Victor need to touch an adjacent shadow, also it would be hard to cut the power off a station that would have sub reactors not to mention constantly aligns itself with the sun so the cannon can charge.

There's still a few twists and turns with HIVE that remain to be seen. As for a direct vampire assault on the Citadel would be foolish due to such tech like this. http://prototype.wikia.com/wiki/Viral_Detectors.

I'll also have to draw a blueprint of how the base works, but in short there is only one door in and out that goes down into an elevator with said detectors. And not to mention hospital like white bright corridors and such, but we can work something out if you'd like.