I never exactly thought about this much, but how can the invading mirror Brimstone (or vice versa) use his orbital strike on the other planet? are the two planets close enough for the beam to reach or is there like, some sort of portal that...

So I've played over 30 matches so far in plat with my boy(I know it's not high elo or anything) and I have a few thoughts about him which are probably wrong but that's fine. I haven't seen anyone else playing Harbor pretty much at all, and...