I can't imagine why anyone would actually use Warrior tanks on Green for 30 second fights and no clicky threat. But anyway,
http://wiki.project1999.com/Magelo_Blue:Hakata
http://wiki.project1999.com/Magelo_Blue:Hitme
It will be some 100-150 displayed AC. My personal experience was that Sakuragi (roughly equivalent to Hakata) was a noticeably inferior tank to Bobbarker (full cobalt). Most people who haven't parsed will tell you AC doesn't matter, though.