User blog comment:Elgb333/Maids of Honor: Rosarita "Roberta" Cisneros vs Minene Uryuu/@comment-27334870-20171222210806/@comment-422690-20171223020742

Deleted prior comment because it turns out I was wrong - if she didn't use the MP5 in Mirai Nikki, having her use it here would conflict with the buffing rules as written. While it's certainly plausible that she may have owned one, that link you use is pure speculation. As I remember, during the time when Yuki and Yuno used those guns Uryuu was their enemy, not their ally.

Further, it being used in an early S119 match is... hardly a good standard, TBH. His early matches have loadouts and powers that are less than accurate, if I were to put it politely.