the news has been out for a while but to the uninformed it seems some Chinese team made a kancolle knockoff but with guns instead of boats.
Considering that the gameplay shares much more in common with a turn based strategy game with actual abilities and choices instead of pure RNG, I'm sorry to say that the only thing it knocks off is the fact that the characters are personifications of modern firearms. But hey, that's totally something KanColle invented, right? Pardon the sarcasm.
I think, it just because no-none noticed, and loved that game, then Girls Frontline comes to replace them...
I played Shooting Girls for 4 months (english) and I think the reason it failed was that there was actually quite a bit of strategy, but it was so difficult to figure it out that a lot of maps seemed purely RNG based even though you could actually predict the outcome if you understood the not very intuitive strategy behind the formations. The visual effects was minimal, and the gameplay was slow. The story line never got anywhere (although I didn't finish the campaign) and even if you paid to play there wasn't really any way to speed up the game (really shitty store selection). The best part of the game was actually the "Class Registry" which had the art of each girl, voice actor files, and background stories for each girl.
The english version on nutaku is still going, but I don't know for how long. Probably not much longer than a couple more months from now. I really wanted Shooting girls to survive but unfortunately it wasn't meant to be.