The absolute most difficult challenge I've had to overcome so far is adding height elevation to phase 1. I cannot think of a single problem I've encountered that's been as frustrating as this one. Spawning wasn't even as bad. If it were Elites attacking, height elevation would be a piece of cake. But with Spartans they have magnums, meaning they'll sit up in these positions and stay there for the round. That's not fair to defenders unless everyone is starting with DMRs and NRs. Then again, it happens on breakpoint so maybe there's just an issue with the way I'm doing it. Maybe I should give defenders high ground instead of attackers for phase 1. Hmm...