Casual Combat: Repair Rendezvous

I've received some feedback from a valuable source (my sister) regarding the Simple Combat Tutorial, and as a result, I've started work on a casual game. Similar to Simple Combat, but without multipliers or an allocation phase. Each ship class has a defense rating representing the amount of damage it can sustain, and once that it passed, the ship is out of the game. Depending on your preference, it is either destroyed or taken out of combat, towed to a friendly base for repair and debrief.

Using that idea, I did an initial run of the "Repair Rendezvous" Scenario from the "Starfleet Command" games that I have adapted for Fantasy Trek, giving the heavy cruiser a defensive rating of 20. The results were encouraging.

We start off with a Fed CA encountering another Fed CA that has sustained 19/20 damage. It has three rolls to repair the damaged ship. In these three rolls, it repaired 8 points of damage:

FCA1 rolls:2

FCA2 damage: 17/20

FCA1 rolls:3
FCA2 damage: 14/20

FCA1 rolls:3
FCA2 damage: 11/20

After that, the enemy (Klingon CA) appears. It automatically divides its fire between the two ships. If there is an odd number, the majority of fire goes to the damaged ship. I suppose, though, if I was the Klingon (hard as that is to imagine), I might try to finish off the damaged ship first. So obviously this is still a work in progress. But the casual format seems to work. Here are the rest of the logs:
FCA1 rolls:2
FCA2 rolls:1
KCA1 rolls:6
results
FCA1 damage: 3/20
FCA2 damage: 14/20
KCA1 damage: 3/20

FCA1 rolls:3
FCA2 rolls:2
KCA1 rolls:4
results
FCA1 damage: 5/20
FCA2 damage: 16/20
KCA1 damage: 8/20

FCA1 rolls:3
FCA2 rolls:4
KCA1 rolls:3
results
FCA1 damage: 6/20
FCA2 damage: 18/20
KCA1 damage: 15/20

FCA1 rolls:4
FCA2 rolls:5
KCA1 rolls:4
results
FCA1 damage: 8/20
FCA2 damage: 20/20 destroyed
KCA1 damage: 24/20 destroyed