A fan doll that got so much traction that MICA brought her in. Do you REALLY like the AKs? Do AKs make you feel all tingly inside?

Her own buffs to herself count herself as an AK, so no matter what you get at least a 5% boost if you send her by herself. But frankly if you're not using at least two other AKs, why the fuck are you even using her? If you have AK47's best special equipment, she becomes a proper lord of war with very high DPS. Likewise, she makes AK-15's janky skill work (pre mod, post mod she doesn't really need AK-74M she's just busted), boosts AK-12's DPS a considerable amount, and amazingly, solves AK-74U's problems with uptime.

While the percentages don't seem impressive for her self-buff, it's a passive, so you get a 44% boost from the very first shot no matter what in a four AK echelon (74SU + pick 2 other AK dolls you like), which gives her a decent start.

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.

After literally years, M4 demonstrates WHY SHE IS THE HEROINE and becomes METAL GEAR.

She keeps all her old benefits but has 5 star multipliers and better stats now. This gets even better when Mod3 when she gets a unique that ups her firepower and ALSO gives her armour, so she can kinda tank in a pinch. Her buff tiles are ALSO slightly improved. Her mod 2 skill also tags enemies and enhances the mod skills of other Anti-Rain units.

The big thing however is the desperation mode. At mod2 onward, when 3 or fewer allied dolls are in battle (you can retreat 2 units to force this, or simply deploy her with a partial strength echelon), she pulls out the portable cannon and proceeds to deal hilarious damage that makes grenadiers wet their pants, as huge AoE blasts firing from every dummy. The blasts are kinda 100% accurate (the main hit can never miss, even at night, but the splash damage can. Its weird), and can partly crit (its complicated), and is meant to be a last ditch thing to save a fight under dire circumstances (of course, we instead abuse it). This is however, a doubled edged sword, as her RoF also goes down, so its possible for some enemies to slip by if you havent taken this into account.

Basically, Mod her first. She's pretty much priority #1 for modding.