An Effect of Fate
Kreegnog knows which side is the winning one. When his side lost, he switched, and that’s how he joined the crew that now run the SSV Concord.
Little is known about this Krogan, and few crew members dare to ask. He usually can be found in his quarters when there’s off time from missions. He likes doing push ups. Have you ever seen a Krogan do a push up? Their arms are way too small for their body, similar to a Tyrannosaurus Rex. That’s why he does them in his quarters.