Sempai trashes all my tanks

[PoorOldSpike]

Aug 44, QB 2000 pts ME
Sempai got a Total victory.
Me-Russian with 9x T-34's and infantry
Sempai- German with 4x Marders, infantry, arty and ATG's

This is the endgame screenshot, Russian map edge at bottom, German edge at top.
Red and blue arrows show tank movements, red circle is final Russian infantry pocket.
Wavy blue line is final front line.
Sempai skilfully threaded his Marders around the trees to pick off my T-34's one by one, I fired back but kept missing (yes we all have such games from time to time, sniffle)
Final result - I lost all 9 T-34's, for the loss of NO Marders..
Now I'm off to Counsellor Troi for trauma therapy)