Yes I know that's not really her name. And yes, you'd think the unit whose hands are actual guns would be a handgun, but nope, she's an SMG. MICAAAAAAAA.

She has a pretty interesting skill that reminds some of C-MS. What it is is mildly more complicated, because it comes with good AND bad sides, and allows her to be both a main tank and an off tank. As an off tank, she provides decent firepower with 100% uptime, a debuff no one cares about (-acc) and a really nice buff (constant eva up!) for the main tank, while as a main tank she has permanent Eva up, buffs acc of the same column ("vertical row") but actually makes the off tanks (or just people in the same column) a little less survivable. Skill discussed in more detail in her entry, but its fun stuff.

A problem she has though is the shape of the tiles. That lacking middle row really gets in the way, but she has enough other uses that this isn't too awful if you know what you're doing (For example, you want to buff the everloving bajeezus out of your main tank's dodge instead).

Also she buffs Rifles with her tiles too too, but this doesn't seem to come up all that much.

Similar to G41 in performance (actually slightly worse, but not significantly) and the artist just drawing their weird fetishes that land you in jail. She's basically a 5 star equivalent of Tavor sharing the primary weakness of taking 6s to startup instead of 4. The skill is good while active, but YMMV.

Honestly, the issue with any AR outside of the big mod ones, is that they just get gapped so hard unless they have a niche. ART556 does not. So you could use her, but....eh...?

Extra notes available.

Kind of fetishized and sort of jailbait, but she's still a very solid option if you have her special equipment. Outside of that, she's pretty mid. She used to be the standard ARs were judged by, but now she's pretty irrelevant.