Ushabti , They come standard wtih Great Weapons. But they can replace the Great Weapons for free with one of the Following, Great Bows and Additional Hand Weapons.
The Army Builder entry does not have the Great Weapons selected. Also, it allows you to add Great Weapon, Great Bow and Extra Hand Weapon at the same time without error.
Fixed for 2.52. I found a neat background code for these free exchanges, learned it making the Skullcrushers for WoC