That does not surprise me. Quiet and D-dog being the most chosen buddy's. They both have great usefulness in stealth operations. Though quiet is also great for when you need to go on the offense. Either way I use both evenly. Though d-dog is still my favorite. I just like stealth a bit more and d-dogs automatic tracking is a bit more automatic than quiet. He can sniff out enemies indoors too. While quiet's scout command only seems to be limited to bases and outdoor only. (She can miss a few, though point them all out way before you even reach the base.) Guess they both have advantages.