It still counts as stealth if no one lives to tell about it, Ignition is an odd ball and a loose cannon. The only side she took was one that let her blow up whatver she wanted. So to reduce damages to themselves the army took her in and dumped her onto the Shadow core in an attempt to destroy them. But Ignition took a liking to how they worked and focused her efforts on blowing up shit to hinder the enemy. She wasn't one for stealth so she designated herself as the distraction by causing as much explosive chaos as possible.

And boy did she deliver, so much so that on their last mission she allowed them to get in and out easily. But as she was regrouping with her comrades to extraction she saw the leader and her few other buds get gunned down by their own allies. Just what the hell was going on? But before she could get an idea there was a loud noise as a sniper shot one of her bombs followed by a very large explosion.