[ South frowns as she looks around the closet, pushing the uniforms aside with her good hand to get a proper look and see if there's anything hiding.

It's not her who notices that one of the uniforms seems to be missing. It's Delta, who projects his hologram in front of the relevant section and informs her: ]

There is an irregular number of medium-sized uniforms compared to the other sizes. It appears that one such uniform has been taken.

...huh. Okay. That's—

[ She hears Kerrigan's voice from the bathroom and picks up her own comm. just in time to catch her report in an echo. That's... ew. Monster gunk. She's glad Kerrigan called the bathroom.

When she's done, she sighs and turns her video on too. ]

Yeah, so, there's also a uniform missing. Medium, specifically.