Its always hard to keep up morale and interest in your game when you are getting hammered. I try to take solace in the chances that I might get to take down one more tank before my remaining men are ground into oblivion.
Another thing I have found is email is not always as reliable as many might think. If you email someone a few times and don't hear back it is probably a good idea to PM them on the forums they normally frequent or post a "Flare" as they do at the Blitz.