A soldier fires rocket or throws a grenade not directly at aliens, but at car they are using for cover. Will it still count towards this soldier's kills?
I'm almost certain that they do. One of my soldiers just got promoted for a kill made by an exploding car that she put on fire by missing. If they get XP for the kill, it stands to reason that they also get the credit.
You don't get kills for:
- rocket attacks
- exploding cars
- debris falling on aliens
- aliens catching on fire or poisoning themselves.