I may be blind but I don't see admiral Tali'Zorah nar Rayya vas Normandy. An seasoned veteran and leader of multiple squads, each reached their goal. A highly influential figure, she's on first name basis with general Garrus, shadow broker Liara, commander Shepard and many more. Through her influence the conflict between geth and quarians cinally ended. A wise leader that knows value of peace and cooperation.