Imperial Armour 8

[Rough Touch]

could I use the ork list in here as a ally attachment for my main army or use this as my main with a normal ork codex ally attachment

[Gotthammer]

[URL="http://www.forgeworld.co.uk/fwDownloads"]From the Forge World allies update:[/URL]

Ork Dread Mob Armies

When using the Allies Matrix (page 113, Warhammer 40,000 rulebook),
Ork Dread Mob armies are treated as Ork armies when both selecting
allies to fight alongside them and when using them as allies for another
force. The exception to this rule is that they may ally with Ork armies as
Battle Brothers.