Combats and Bigger ships size

I'm a long time player on strategy games, and have played for long on GalCiv III before.

I've gone through a couple of long game with GalCiv IV and I saw some issues to be fixed / improved:

- Bigger ships simply didnt work effectively. Normaly in those kind of games you "rush" for better tech and bigger size ships and when you couldì, you have an edge in combat. Here it simply doesnt work.

I'm posting an example below: I have a carrier and a dreadnought and they loose badly against a bunch of smaller ships (way easier to be built and discovered). This is consistent and happen frequently. It could also be exploited but, frequently, mid-range AI go for many smaller ships rather than for going on the bigger one.

- Sensor could not be developed yet, and you have fleets with only 2 sensors range, which I find weird, and additional modules does not make a lot of sense (just the repair, or the carrier, but they didnt make a difference really). 

- Terror stars need to be made more "clear" in its deployment and management, and they also need to be effective at space combat.

The game is indeed an improvement, but needs to be finalized. Have a good day!