It would make the crucible a lot more interesting. I love capture the flag and it sucks it isnt a game mode in the crucible.
I know capture the flag is simple thats the point it should be a simple gametype to add in.
Other ideas:
1v1
Center Flag push
Juggernaut
Sword Wars
MVP
Sparrow races
Sword vs Shield wars
Sword and Shield wars
Got ideas?