You get sent by Price to look for Ghost because he still hasn't returned from his mission.

You notice him kneeling down in the distance and run up to him, thinking he's hurt when he hides something behind his back from you.

You insist on him showing you what that is and he finally gives up, it turns out it's a box with a little kitten inside.

"Help me get it back to camp. Without Price knowing." He commands, seemingly a little embarrassed. "C'mon, hurry." He adds, limping a bit.