Cait wasn't really one for waiting. She could sit tight if she had to, but holding off for a hypothetical signal when Tabby and Dominic and John and Ian were inside doing shit ... it wasn't her style, not when the chances were there was something to be done.
And for all the fear of power dampening, one look down was enough to see that Cait's were still working, silver and solid, and no reason whatsoever to stay clear of the fight that was bound to be coming up. So she counted, stayed hidden long enough that Pyro could get in and probably start doing whatever he was doing, and then went up to the front door. Sure, chances were they'd have cameras or something, but it wasn't like no one was going to figure it out eventually.
The front door was locked, naturally. Closed tight, but not airtight - not watertight. Gun was set down on the ground outside, sword beside it, and then Cait melted, crept forwards and under the miniscule openings in the door to reform on the other side. Open door from within, get the crap that didn't shift with her, get moving.
She paused to look for a moment over at Morph, random kid here to help for who-the-fuck-knew-why-or-cared. "You feel like comin'?" Mercury inquired. Without waiting for an answer she was turning and heading inside, where noises down the hall suggested that someone was coming to greet the visitor.