Yeah...I like Optec's idea.   Having the ability to PRODUCE carriers would just be plain cheap, because it would lead to mass production of these units, which leads to the death of any semblence of strategy in gameplay.  Maybe the Federation could warp in Typhon-class carriers using credits, like in Fleet Ops now.  Hmm...just a suggestion...

Here's some ideas:

1. Each fighter in a carrier is built (like in Starcraft), but they can be re-built
2. Each fighter can be individually controlled, so they can operate outside the carrier's range (i.e. to scout, hit and fade attack, ambush)
3. Upgradable fighters (enhanced shields / weapons, maybe even optional warp drive... )