Playing as the commander, most games I lose silver because the bot AI uses the repair kit as soon as anything gets damaged.
XP wise, each tank gets like 30 xp and overall you'll be lucky to get 700-800xp.
All you really get is 1 point towards the op, occasionally two. If you lose you get none.
Completing master commander is going to take forever as it requires 75 points (it'll take roughly 60 games to compete part 1)
Tanker mode has better rewards honestly.