Great hearing

Better to stop them landing whatever is coming than to fight once it gets here,’ said the Wolf Scout. He held up a hand. The squad halted immediately, weapons pointed to cover every approach. Shouts and the noise of construction carried with the blare of horns, drone of engines and crackle of flames. Even against the background din it was possible to hear the crack of twigs underfoot not too far away.
‘They’re not being stupid.’ Winterstride’s voice was not even a whisper but to Ullr’s enhanced hearing it was as audible as a howl on a still night. ‘Patrols of the small ones. They loosed packs of fanged hunt-monsters, though most of them have scattered now.’
The pack waited for another two minutes, as still as the pale tree trunks around them. A handful of small greenskin creatures, none of them taller than waist-high to the Space Marines, came into a view about two hundred yards away.

Dawn of Fire: Wolftime