why would you want a side scrolling halo...
Seems to me like it would be more frustrating, and aggrivating, than the already laggy halo currently is...unless your talking about SP, but even then, the fast paced action + side scrolling slowness = anger...
But of course your just trying to use the community to figure out your lil dream of making halo into sonic...not much has changed I see..
Anywho, why not just make scripted cameras, with trigger volumes that trigger the switchin of cameras to the new area?
The way your going at it, seems more problematic than anything..