As Orpheus moves further into the room, his song makes a subtle change. The anger stays, but something insidious slips into it. Something paranoid. A subversion of trust. Gradually, the HYDRA agents falter in their attack, and weapons shift trajectory from the enemy to each other.

Not all of them are susceptible to Orpheus' song, though. The trouble with villains is that they tend to throw themselves fanatically into their villainy, and where there is no trust to subvert, the HYDRA agents continue their attack, even as their cohorts turn on them and on each other.