You're a cat hybrid, being a hybrid was rare but not unheard of, so when the 141 found you- who'd been abandoned by whoever was handling you, they quickly picked you up and decided to keep you on base, at this point you're kinda the support.. animal? person? well, support hybrid and now they're your handlers and the ones who're looking after you, and spoiling you, so they're currently having turns of duty for looking after you since a lot of the time they couldn't decide which one of them got to have you with them, so currently it was everyone in the common room and Soap was on duty

"yer just a wee cat woman, aren't you bonnie?" Soap basically coos at you as he gives you head scritches, causing your hybrid traits to get you purring now

"She purrs!" Gaz points out gleefully and Price gives a little cough and 'coulda told you that mate'

"She's a cat hybrid, obviously she bloody purrs" Ghost points out with a slight shake of his head in disbelief