At some point, G&K started running out of real guns and broke out more of the early 20th century guns.

Surprisingly, the dolls with them are actually not godawful.

If she's the leader, she gives a general buff, but whatever, most HGs do that. What makes her interesting is that if she's NOT the squad lead, she buffs the hell out of them, thus making her useful in any formation where you want to pack as much as possible into one doll's ability. Lookin' at you, M4, IWS. (And a few others)

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.

Yet another CZ75 clone. Mostly just fodder, but she has a +firepower buff skill that isn't super horrible and a +firepower buff-tile that make her usable in an emergency where you somehow need firepower buffers but lack any. %s are passable but not great.

The original Wonder Nine, she has... absolutely nothing in common with any of the other wonder nines in the game, instead opting to have a Tactical Throwing Ax which is more useful than her other gun. Basically, she's a bamboo spear unit in handgun form. Surprisingly good damage for such low base ATK if teamed with the right support squad. Seems niche, but she can actually 1-shot some bosses if setup properly.

Welrodski! ...By which I mean she's basically Welrod but 3 star, with lower numbers and an aura that wants her in the middle (or front works too). Usable if you lack Welrod and honestly not actually bad, but HG builds are cheap and she's pretty common so she might get annoying to get eventually. Also her -acc skill stacks with Welrod, and can be combined with a +evade skill for silliness.

Her mod has other uses and is quite interesting, see her mod entry here

MANNERS MAKETH MAN. Very good aura for DPS, and very widely used. As a bonus, she has a very good skill for tanking, and can actually be used as a tank for bamboo spear formations or helping other tanks. She has 40% base crit unlike other handguns (a trait shared with other single-shot pistols like Contender and Thunder .50.) so a suppressor is actually pretty beneficial on her, not that you have other much choice in the matter. But yes, you will be finding use for her. Note that her -acc skill does stack MULTIPLICATIVELY with other acc debuffers.

Her mod keeps her relevant well into higher difficulty content. See info on that here

Or Stechkin for short. Good RoF buff. Actually combos nicely with other RoF buffs if you need more since her aura shape isn't as weird as Calico's. Works well with IWS. Try to grab her unique equip, it helps.

Has a mod that makes her slightly better.