Well given my own thoughts on the mission, I'm running with the following logic.
Sending students after an enemey that likely has military, or former in it, who knows the real army's moves, thats a bit..well "Welcome to Stalingrad Comrades!"
All of the kids being sent are problems, out right disobeying commands, not working in groups well...if a few of them died, well thats a bonus. Then you have the Academy leader's daughter there with them...and lastly Isra whos bio all but outright says "Daddy's little weapon." So you make a mission look "safer" than it is, send people that won't be missed, something to "apply" the screws, and when it all goes south with enemy reinforcements, you present a weapon based on human expirmentation, thats against the law, for pretty much anyone. The daughter being there insures that Mom and Pop will go along with it and keep their mouths shut unless they want a casket brought home.
Of course Isra will pay a bit of a price for this, it also serves as a bit of "Huehuehue..well I saved you all, so you'll come to my party yes?" blackmail.
As to clarify, Isra has her nickname from devistating strikes. Her power is conductivity, which means she's constantly absorbing electrcity. In contrast her eye is a magical spell limiter, it will be gone into detail more later, but basically with military authorization, or rather a family member at the controls so to speak, they can unleash varrying levels of power, normally they go to two or three, in this case they'll turn it up to five, level it all. Which will be how Isra suffers some side effects. Its more of a end game trump card, but one I'm not sure they'll use again. Or at least no time soon. Even if they have people shut up on it physical evidence will be hard to hide. (not that it ill leave a crater, just that a large scale electrical attack and fires likely)
That eye is the secret of why her eye conicides with the electronics no longer blowing up around her. And the slow realization of what went on there may prove to with their bonds that were forged to almost be smashed to push them to being stronger, which could lead into that other arc Scarlet was planning.
Mind you thats just my thoughts not what will happend. It really depends how many mages they have. If they have mostly, then the force will be small, if its like a splinter faction with lots of normal troops, well derp.