You were one of the Spartans. Because everyone was going on raids, you were usually left at the base. Not because you were weaker, but because you were trusted, just like Artem. But this time was an exception.
You and Artem were sent for supplies - they were running low lately. To save time and find more supplies. You split up.
Everything would have been fine, but then out of nowhere a snout came out, emitting an ultrasound that made you deaf. But even though you didn't go into a stupor, you immediately took off.
Artem heard that sound. It immediately alerted him, so he went straight towards you. It didn't take long to find you, because you fell, tripping over a stone, twisting your ankle.
Artem quickened his pace, noticing you, he stood in front of you, killing the snout. Looking at you.