I really like this idea

They need to add CTF mode permanently, and have other modes like Sword Of Crota after, SoC mode would be fun, sword spawns in middle of map, have it so the sword carrier is slowed by 50pcnt movement but can 1hit/2hit Meele people, nothing really op and the team has to protect that person back to their starting zone to cap it (this is where the teamwork will shine) But even better have SoC mode for each game type, so in Rumble like few people below have said, everyone fights for the sword, person with sword gets a overcharge shield(like being in a titan bubble) Then in Clash have it sort of like rumble but team vs team then of course the control/CTF mode is described up top