Apologies if these have been asked before and I just have bad search-fu:

1) When a hero is killed in combat, is the effect of their bonuses immediately removed from the combat calculations or does a battle that starts with hero bonuses finish with the same hero bonuses?

2) Does firing kinetic weapons at missiles subtract from their attack strength?  E.g. if I attack ships that have 50 strength slugs and I keep firing missiles at them, am I being attacked with less than 50 strength because some of that 50 is being aimed at my missiles instead of my ships?