I have Two things to say:
Halo Spartan Assault is Designed for Xbox ONE and Windows 8 on Computer as it has very good graphics so it may crash with all the sounds and weapons and music. Or it may be a big download problem. If this is not fixed eventually. Maybe its not an update
fix. Try removing the game and re downloading it. Don`t worry it wont charge you twice to re download something. If it still persists stay with the DEMO version I have played it a Hundred times already and haven't crashed. If it still persists download eitheir
version to a different storage device or to cloud saved games is you have gold.
And CaptRaspberry if you read the description of all items that are priced on xbox live market place it says no refunds.