carriers sux lor... pros will never use carriers, firstly, they
have very lousy defence, they are ex to build, and they take a
bloody long time to get ready, unless u're playing what? no rush
20mins?
zerg can use scourges to deal with carriers, firstly, they're super
cheap to create, and for every egg, spawns 2 scourges, and it only
takes 4 - 5 scourges to destroy a carrier. a good mass of hydras
oso can deal with carriers.
for terrain, they can use goliaths, with their long range upgrade,
carriers are definitely no match for them. and that's not including
a science vessal which can blast their shield to bits
basically. carriers sux la
for protoss, their best forces are still dragoons, reavers and dark
templars. don't waste time on air units.