As we all know credits have been a rather big problem once you get to t3 ships.

So my I dea is this: We should get more credits the more we damage someone.

The more damge we do the more credits we get and get a nice bonus if we manage to sink a ship. 

People who do not do very much damage to enemy ships should recieve less amount of credits. The only exception being the flagship (only if he properly uses bombers though).