First Strike - Spartan speed 3

On the third gallery off the floor of the great room, at the four o'clock position, a Hunter pair roared with anger. They raised their fuel rod cannons and then leveled their weapons—and fired.

 Kelly moved before anyone; she was a blur of motion and stepped in front of Dr. Halsey. John and Fred moved to either side of Kelly, while Anton grabbed the Admiral and threw the older man behind them.

 The blinding white-hot plasma charges struck the Spartans' shields and splashed over their chests.
 John's shield drained completely. The overpressure forced him to take a step backward, and the skin on his forearms blistered.

- Halo: First Strike, Chapter 22