Good Idea?

Wouldn’t it be a good idea if the people in charge of the Halo Franchise made a DLC for Machinima in Halo Reach?
Like everyone would be able to lower there weapon in a XbL custom game. And also you’d be able to go in forge and get objects or scenery that wasn’t in the ordinary forge like destroyed Falcons, Warthogs, Ghost ,etc. I personally think they should make a DLC for like 400 - 800 MSP.
Anyone else think its a good idea?