(german version)
In full fleetbattles, the ships behave strange and just fly on a certain circle around the middle of the battle viewer.
In galaxy view, fleets are only shown as one ship cause the three ships which are usually shown for a fleets all float at the same point within the square the fleet is.
Without full fleetbattles, the game does not show the loosing fleet exploding for battles without trooptranpsorters and only when attacking planets, weapon fire effects are applied.