Well, if he is playing singleplayer for some reason then its true that AI has units with better parameters or at least it appears to be so, not to mention overwhelming amount of replenishing forces.
In multiplayer however, and I believe thats how its meant to be played, I didnt encounter any sort of serious bug whatsoever except japanese mortar truck failing to move when ordered. Thats something given that there are but a few strategy games that surpass MoWAS in the amount of details and the depth of gameplay. This is one of the best games if not the best I've played.
OP: if you were talking about multiplayer just learn to play properly or go back to CoH or other arcade games.