Cheat in multiplayer mode???

[kammenos]

I am playing a couple of months MOW multilayer (i have 280 games), and this happened to me for the first time. Playing 2v2 victory flag, the opponents kept making infantry and tanks, and near the end of the game, a king tiger appeared. I did not see if one was making infa and the other tanks...
My question: Is there a known issue of cheating in multilayer? Can someone know if the opponent is cheating???