I don't see why Bungie removed their old crucible platform for this current one. I personally never found a problem with 6v6s and 3v3s. They always balanced each other out. Their was enough 6v6 game modes to be chaotic and fun, while their was also enough 3v3 modes (like skirmish, salvage, and elimination) to make it fun. I don't necessarily HATE this current PVP, I think it would be a good idea to mix the Destiny 1 crucible platform, with this current one. So have 6v6s and 3v3s along with one "mixed arcade" mode.
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This is exactly what the community asked for and now that it's here, they realize they don't want it.