Modern Warfare 2 Alpha Build - Secret Alternative Ending to Loose Ends

On Loose Ends or "estate" there is an alternate ending you can activate by executing the command "start alt_ending". This ending is still left in the retail build. Im not really sure what this was for, maybe Ghost was meant to survive or die earlier in the level? Instead we get Archer getting blasted in the chest.

Zone Name: estate
Build: IW4_DEV (Alpha) build 491 latest Tue Jul 28 2009 08:15:35AM xenon

Modern,Modern Warfare,Modern Warfare 2 Alpha,491,Alpha 491,Early,Mission,Early Gulag Mission,Alpha,Early Call of Duty,Call,of,Duty,CoD,MW2,MW2 Alpha,Secret,Unused,Animation,Secret Alternative,Ending,Loose Ends,