Take a step back and forget for a second it's not an RTS, and Mechabellum looks like classic Command and Conquer, reimagined with giant, missile-and-laser-equipped robots. Hundreds of units.
Let's not allow for any ambiguity: I don't think that Tempest Rising is a better game, overall, than the original Command and Conquer. Tiberian Dawn is more stylish, funnier, more satirical, and 30 ...