You are downloading the Halo Waypoint XAP file v18.104.22.168 for Windows Phone. Halo Waypoint is a free Xbox Companion Game: IMPORTANT SERVICE CHANGE: Halo Waypoint Changes Coming on August 1, 2014 On August 1, 2014, we will be discontinuing support for the Halo Waypoint. You can now download the offline XAP package file to install & try it.
Download Locations for Halo Waypoint 22.214.171.124 XAP file
To try to install it manually from an SD card, you should choose one of the server location above to get the offline Halo Waypoint XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.