Campaign DLC?

Well I was playing the deleted scene from gears of war 2, and I thought about what some people said in another post I made a while ago. Why not make a dlc for some deleted levels from Reach and Three? Like the flying level that was supposed to take place on guardian. Or the level in New Alexandria where you where supposed to drive a scarab through the ruins of the city.

Another question is that why hasnt bungie or 343 ever made campaign dlc? gets on knees Please 343 I beg of you, there are enough MP maps why u no make campaign dlc? Jk you can never have enough MP maps, but a campaign DLC would be a nice thing to have instead of another three map dlc.

This is just my opinion, tell me what you think.