I think so too, but I think it's one of the tactics where you show your playing kinds but not the Joker and Ace.
My guess is that the plans are incomplete or faulty in some way that if they ended up in the enemies hands, then they would cause more trouble then good
Yup! That's possible because Rino/Marina isn't naive bevause she knew well how things will work out. It's gonna be interesting if she invents a gun ohohoho(⌒▽⌒)
If that's the case then j understand
Bruh if she knows there's a traitor among them how can she just give them all of her weapon designs? That surely doesn't seem smart to me