Not a review but more general information for you: If you´re into RTS and have never tried a game running on the (open source) spring engine, do it now! Graphics of most are outdated but the gameplay and possibilities to customize are unmatched in the genre. There are several Total Annihilation based games for spring engine but also lots of others, like WWII and Star Wars based ones for example. Beyond all reason seems to be the game on spring engine with the most pretty graphics right now, so it´s a good starting point.