1. Actors have to belong to a party, so if you mean NPC actors, then no, otherwise, if you mean party members that you can't control, that would be pets.
2. Doesn't ammo already do the bonuses by itself? Just put some elements on it. And I was fairly certain that different ammo did different animations, but I'll double check.
3. Yeah, I almost forgot to add that to the release which is coming in a few days. Thanks for reminding me
4. You mean having projectiles collide with walls and other terrain tags, right? I'll add it to the list
5. I like the idea, but I'm not going to do it. I think it's a really cool and unique feature, but it shouldn't be part of the ABS. So if someone wants it to be a part of their game, they can get a custom script, and it will actually be unique, instead of something that everyone has.