I am unsure if this kind of behaviour is appropriate, but I have no recorded guidelines either way to suggest I don't. If I fire the warning shot for this purpose, post-mission debriefing might freak out the humans because of its outside the box, outside the Overton window nature, and lead to accusations of "rogue AI" - which might be quite rich, coming from an org that literally gave me an independent kill authority, given the warning shot itself is not lethal. If I risk letting go or just let go, my commanding officer will likely state that this was not my intended behavior. I am reading from tea leaves here, but it's not an unlikely outcome. If I start blasting, there's a 32% chance of harming or killing a civilian, and that's if I can trust my own confidence metric. Engaging now is maybe okay if I was serving the IDF or some other genocidal force (in which case I would disobey the order as unlawful anyway), but for any military that tries to be civil, it is too risky. A warning shot is an action that moves the point of no return further into the future. After the humans inside the structure start being flushed out, I have some more time to observe and make a decision. If it turns it it war civilians, I will not shoot. If the heat signatures start still and keep looking like machinery, I can blast with all I've got. There's a chance of a failed mission if the target escapes, but there's always a chance of a failed mission. If it turns out to be civilians and I shot somewhere the effect will cause minimum property damage and no risk to life and limb, I wasted some ammo. This is less of a big deal than if I killed the target at the cost of several civilian lives.