I never liked Supcom because the big 'epic' scale of it. As the author put it: it tends to become just pushing huge spam of faceless robot armies to the enemy defenses. That is imo really boring.
TA derived games like ZK manages to find good golden middle and balanced approach to the dilemma of epic vs. micro. We can get them bot without it being too difficult to handle.
Epicness doesnt come from the scale and form but from substance.