Here is the setup..... I was GMing a group this weekend and as a new group we finally did space combat. They were fleeing in a Lambda shuttle and had 3 TIE Fighters attacking them (2 from the front and 1 from the rear).
Initiative went as follows: PC, PC, NPC, NPC, PC, PC, PC, PC.
Combat started and the PC players shot their fore and aft weapons (killing 1 TIE). The TIE's shot back, doing some damage to the shuttle. Then then PC's used Slice Enemy's Systems, and rolled a TRIUMPH, so they could disable a weapons group for one round.
The question we had was: What does "One Round" mean in the text for Slice Enemy's Systems?
Slice Enemy's Systems - The crewmember uses powerful shipboard computers to attempt to disrupt the systems of an enemy vehicle. If successful, he reduces the defense of one zone on the target vehicle for 1 round per [HIT]. A [TRIUMPH] may be spent to disable a weapon system for one round, and [ADVANTAGE, ADVANTAGE] may be spent on inflict one system strain on the target vehicle.
We came up with a couple of meanings for the "One Round".
1. It lasts for the current round of combat, clearing at the start of the next. As GM this is the ruling I made as it means that the effect lasts only 1 combat round. Also, if going up against other vehicles with a defense rating, the Slice action would be used first so as to be effective with the defense reduction when shooting that round. Yes, this does mean that if the NPC has initiative and shoots first, the [TRIUMPH] from Slice has no effective usage.
2. "One Round" means that it lasts until the completetion of the next full round of combat, even if this action is the first one done that combat round. I am not a fan of this theory, as it is possible to disable a single fighters weapon system for 2 full rounds of combat.
3. It lasts until that specific PC makes their action/maneuver for the next combat round. See #2 for reasons why I don't like this meaning.
Any help would be nice.