This Soviet Commander was one of the USSR's most skilled and loyal strategists during the Second World War. Much of his past remains unknown.
Second World War
The following is based on the Soviet campaign of Red Alert and might contradict canon.
The commander was involved in missions directly ordered by Joseph Stalin himself. His first assignment as Lieutenant was a test to see if he was obedient and ruthless enough to be trusted - the commander was ordered to violently pacify the town of Toruń. He was then given several more important missions and was promoted to Captain. Gaining even more victories and allowing the Red Army to take over most of Europe eventually led to his promotion to General.
Stalin's aide Nadia was one of the Commander's greatest proponents during the war, while Field Marshal Gradenko seemed cynical of the Commander's abilities. Eventually, Gradenko's mistakes led to his removal, and the promotion of Georgi Kukov, who was generally more supportive of the commander. However, after a failed bid to capture an Allied Chronosphere, Kukov also turned on the Commander, attempting to blame him for the failure. Once again, Nadia aided the Commander, proving that Kukov had neglected to inform the Commander of certain vital intelligence. Stalin proceeded to snap Kukov's neck.
After total Soviet victory was achieved, the commander met Stalin at the captured Buckingham Palace. Sipping from his tea, the dictator promised his General that he would be "very well taken care of," perhaps implying that he would kill him. Just then it became clear that he had been poisoned by Nadia, who revealed herself to be a member of a shadowy organization that controlled the Soviet Union (and thus manipulated the whole war) calling itself the Brotherhood of Nod, which would be "tired" of the Soviet Union sometime in the 1990's. Nadia appointed the Soviet Commander to succeed Stalin as Premier but, Stalin's advisor shot Nadia in the back, apparently no longer needing her. The mysterious advisor, none other than Kane himself, looked the commander straight in the eye and proclaimed that he was the future, possibly foreshadowing the coming of the Tiberium age.
From this point on, the commander's fate remains unknown. Most likely he began his rule of the now continent-wide Soviet Union. Throughout all decisions and struggles, however, the commander would always remain Kane's loyal servant, working to make the Brotherhood's mysterious plans for humanity a reality...