Silver ran from the gunship, terrified. If the bullet's were normal, she'd probably be okay, but she wasn't going to try that theory. She saw the person beside her and snarled at him. If the gunship wasn't here, she would have normally mauled him. 
She saw the guy push the gunship off and she just stood there, staring at the guy. Growling, Silver decided to leave him alone. But she wanted to stay for the fight. That ship must have gotten reinforcements and she had a large urge to kill.