Maybe once things are patched up between V and Blitz the Succubi Crew starts showing interest in I.M.P? Like they wanna learn how to use guns, knives, create makeshift weapons and bombs, etc. What would each members' specialty be?
Oh this is a really good ask, I'll try to do my best to give it justice, I also decided to include Verosika and Vortex just to cover bases if your not just referring to the background succubi.
Verosika and her crew getting interested in weapons and I.M.P teaching them and what they like using.
Verosika: She took a while to admit she was interested, to her even though her and Blitzo made up she still tries to avoid him cause it's awkward and she thought it would be even more awkward to ask her ex boyfriend to teach her how to use a gun. But after all the others did it she relented and walked across the hall with the excuse it was ONLY to avoid another situation with the Human Police (It's not because she thinks learning how to use weapon would be cool, no of course not). But even then to me She feels like a minimalist, only carrying around the most basic stuff and outright refusing to use makeshift stuff or bombs, she finds them too messy, I think she would carry around a small pistol (Perhaps bedazzled cause she's glam) and maybe something like a butterfly knife, and would probably keep them in her boot (Cause having them in pockets would ruin her silhouette)
Vortex: Personally I can't see him using a weapon, I think he would probably fight like Loona but probably with less slashes and more grabs and throws. That's all I have to say for him honestly, maybe a barbed baseball bat, i don't know
Josh: Knives. Knife king, he just get's obsessed with every type of knife and will now be carrying at least ten on his person at all times. Every kind, Butterfly, switch blade, bow tie knife, throwing knives just a ton of blades so much so anyone who touches him has a 50% chance of getting pricked, Also has lowkey done that knife circle thing the Joker did in Suicide Squad and Ace walked in and Josh was just like "What?"
Coco: I honestly see her just packing a baseball bat and using it to chuck grenades at whatever is unfortunate to look a like a good target. It's a show that Apple enjoys watching, while all the others are just looking on in terror at the sight. silently wondering why she doesn't just work at I.M.P.
Apple: Makeshift Queen. Ever play Dead Rising? I haven't but you get to combine almost everything you find into weapons and that is Apple's style in a nutshell. She will make stuff as simple as the humble board with nails in it to something as ludicrous as another board she covered in razor blades from shavers she stole from everyone else. Everyone tries to keep a close eye on their personal belongings from now on or else Apple will make a weapon out of it. It will be good but your not getting stuff back.
Kat: They adore any weapon that makes everything chaotic. So he's get's interested in automatic firearms and explosives, AKA an Uzi and just a ton of different explosives which he will detonate as he laughs maniacally. Sadly he doesn't really get much chance to do that but everyone knows to keep him away from someone who might annoy them or else the concert will literally go up in flames.
Milky: Ohhhh... Her and Millie would be fast friends. Milky get's teased about her height a lot and now she has a perfect reaction to those people. Pull out a knife, baseball bat, sword, axe or any variety of melee weapon to terrify them into silence, This is lowkey how she got Kat to stop picking on her. Her and Millie also borrow eachother's weapons just to try new stuff out once in a while.
Kiki: Is the polar opposite of her brother's style, Instead of intentionally making things chaotic Kiki likes to end things with a single well aimed shot. That is to say she's a really good sniper that Moxxie trained so she's even better, She is kinda bitter she can't bring her rifle most of the time but she will sneak it with her sometimes just for target practice.
Ace: The Messier the better, He likes shot guns, Baseball bats, generally just anything that's bound to have a lot of blood splatter and Verosika just knows Blitzo is giving him all this stuff but he won't admit it so she just groans and tries to have Ace calm down a bit so no one ends up covered in blood by the time any fight they end up in is over. Also Ace and Josh fighting together is just... cool melee power couple stuff I guess.