Stechkin's base version already got a pass for being usable.

Her mod gives a slight increase in her capabilities buff-wise. Her passive basically tries to turn her into a sorta-DPS to go with her buffs to allies, but TBH you'd be fine leaving it at the slight increase in power Mod 1 gives.

Modded version of G36

Distraught by the loss of her braid, she gets over it and discovers the TRUE maid was inside her all along. Or something like that.

Her stats are boosted a fair bit and the %s on her skill get a boost to 5 star levels. At mod 2, she gets a rider on her skill that boosts the Evade of stuff in her tiles, and also boosts her own RoF by 10% for every unit standing in her tiles (Max 2, yes it stacks multiplicatively). Yes, tile fuckery applies.

She does have the problem though that to fully make use of this skill, she needs units standing in the tiles, which weakens her flexibility a bit. Totally still fine for going gung ho and just blazing away in a static formation or if you can keep the formation such that stuff remains standing in the tiles though. Her performance is generally a bee's dick below that of AN94 (and makes a good match for AK12) in general use, but beats the Russians vs armored enemies.

Like any good HK product though, she's pretty expensive, so make sure you're sure about the investment and you have nothing else more important to work on (like AR team). Still, if you like the maid, definitely a thing to look at.

Technically has a combo thingy with Springfield, but it falls under "I guess it exists?" Yeah, I dunno what they were thinking.

The absolute trophy raifu, because getting her is absolute ass, being more annoying than any other chapter exclusive. She is literally the only doll whose farm is so bad I will actually recommend autobattling rather than doing her map over and over. It's THAT bad for what you get and she isn't even worth it except for the 100% completionism.

Her tilebuffs are not great (6% Firepower, 10% RoF directly behind her), and her dodge buff is extremely blah for a 5/8. Her self-damage buff is not the worst while having surprisingly high Firepower for a 3 star SMG, but nowhere near as effective as SR3 or later, similar SMGs. Overall, a trophy raifu that you might be able to press into service if desperate enough, but I really wouldn't count on it.

Also known as StG57. Lower DPS than Galil, but has a less awful buff tiles at the stage you will probably use her, because your main tank is probably Sten or something and you'll almost assuredly be running Skorpion that early.

Falls off kinda quickly and has some of the lowest self-DPS among ARs, you won't be using her past the beginning unless you're doing a challenge or really REALLY like her.

The game hates roller delayed rifles apparently.

The new unique equip from the expedition store doesn't help with that, btw. While its stats are excellent (at day…), SIG's base stats are so awful that she's STILL slightly worse than F2000.

Her 4 star rarity is a lie. She's rarer than most of the 5 stars and is surprisingly good for her rarity. MAID POWER. While she performs alright as a 4 star, her mod makes her potentially quite good if you don't mind the expense.

Does not overheat, unlike the real one. Also Imoko art.

Technically has a combo thingy with Springfield, but it falls under "I guess it exists?" Yeah, I dunno what they were thinking.