The Steyr ACR is the gun the Pallet Rifles in EVA are based off of, and this one is about as useful. On one hand, it seems like she'd be good for para fairy and its debuffs (you get +25% final damage with that), except it isn't enough to make up for the debuffs still. It's also not very easy to get debuffed. Evaluation may change based on future enemies, but really it's not worth it when you have so many good ARs to choose from.

Kinda lewd. Her side DPS actually isn't awful, but her ability to tank sucks. Also it's called Jashin-chan Dropkick because she... dropkicks things.

She has a very weird and complicated set of skill interactions for a role that really just wants good, consistent dakka. Has a funny combo skill with M82 (the bullpup AR, not the RF). In terms of performance she's actually not awful, but she doesn't stand out, and there are enough good ARs to use other than her.

Another weird Russian specialist gun, meant to fire both above and below the water, which is why the doll has weird underwater parts replacing her left leg.

Her skill is as annoying to explain as she is boring. Basically whenever she fires, she has a chance to apply debuffs (that reduce target RoF and move speed) on her target, which at 5 stacks, explodes in a grenade-like effect that deals damage and stuns the target. That's the passive. The active fires a debuff grenade that applies 3 debuff stacks (+2 for the primary target) and briefly increases her debuff proc chance to 100%.

Honestly it's really weird, but it has use for things like Golyats, which, coupled with things like shotgun knockback and some RoF buffs, can help deal with some of the more annoying enemies in the game (for certain patterns.)

Also has potential synergy with ACR kinda (though resetting debuff stacks when she triggers explosions makes it a little awkward)

There are not enough ways to say "use her if you have her." I want to make a joke, but its hard to overeemphasize just how good she is. Besides her immensely good uptime (5/8 type), it's raised even HIGHER by her passive, which triggers it everytime she switches targets. In most cases, she will pretty much outperform G11 handily.

Basically the best of the best among daylight ARs, and powerful even at night vs up to light armour. She wants the #7 position on your formation, and there's little reason not to give it. Also she has enough of an Acc Buff that everyone who used to do stupid shit to prop up SR3 can be quiet now, it's all the buff you need to run her.