http://www.coh2.org/replay/22830/jagdtiger-saving-lost-games-for-days
Jagdtiger did more damage in this game than each individual player (42k damage by the Jagdtiger alone).
Don't understimate this things ability to completely shut down all allied vehicles. It wasn't going up against T34s either: The Jagdtiger was raping ISU-152s, IS2 spams, one-shot an M5 at one point... etc.
Why your mate never did a recon flight, so you can snipe down their tanks?