Some of the allied units can easily destroy Yuri's pathetic units. Here is a couple of strategies of how to get rid of them:

Virus
Virus is easy, get a British Sniper and use him to kill her (his range is longer than hers), if there is a group of virus snipers, put a British sniper in an IFV to make him fire faster and have a better range.

Brute: These guys just laugh at the face at almost any Infantry and most Vehicles, a battle fortress full of GI's should do the trick, but to make things easier Tanya and a few Navy seals or British snipers should take care of these hulk wannabes.