Air to ground missile

I have a question about AGM-65D with A-10 late. When im trying to fire missile (3rd perfon view, pressing fire air to ground missile) im getting some small targeting mark and then missile locks to ground patch even tho its noting there. I have set my fire air to ground missile button to MB5. Is there smtg off or there is a new setting?

Even though the 65d uses an IR tracker the target still needs to be locked onto either directly with that box or through the Targeting Optics view; that red box is just where your targeting pod is aimed at. When i’m trying to use guided munitions I typically use Enable Sight Stabilization to bring up the box when i’m in third person to aim the pod early in a general direction of the enemy, switch to Targeting Optics View, lock air-to-ground missile, and then release.