Battle Forces is similar, but a stripped down version (i.e. same units but no technology development or strategic air raid, just combat). No download required and you can play up to 3 games at once with a basic membership for free.
He doesn’t know yet, as he’s only played a few times. However, I’m not about to point that out to him. When I play as the Allies, then he’ll find out. Can’t let your friends in on all the secrets. :-D
That’s the most effective strategy out there…
when your opponent messes up.