I think that this would be amazing, in so many ways. For those guys who make racer maps, no more stacking and waiting for respawn delays. For Infection ap makers, night time with blood spatter and bodies in the maps... (maybe adjustable lights on top of that). Slayer maps would be able to get more complex with the weaponry and ammo locations.
Best of all, if we can get the merging and position locks, we wont need to stack an we wont need to start new rounds.
I am one of those guys who spends more time in forge than play, and when I do play its custom games in my maps.
I would love this and so be willing to pay, but if they could include it as a patch with ODST or just an update, that would be pretty cool too. So, BUNGIE, if your willing I look forward to seeing what you can do, but I won't be too surprised if we dont get it, that would be a lot of programming, indeed.
[Edited on 08.19.2009 10:18 AM PDT]