Yah Firebats were essential in keeping zergling and zealot rushes in check, but if Blizz is going to take them out Im sure they will balance things out so that the need is still filled. Perhaps marines will have a better effect. Or, more likely, reapers are exceptionally fast killers so group them with marines that can take the heat and the reapers will kill any rush in moments. I've heard this game is supposed to be even more balance than the first. I cant remember where I read that, so dont quote me. But whats with that Thor? The only weapons I have ever seen it use are the cannons on its shoulders. It has these massive arm lazers but never uses them. Are they just toys? Hair blow dryers?