User blog comment:Demons of Hræsvelgr/Mysterious Ridgeback Squadron/@comment-2094030-20131016162324/@comment-9984046-20131016203626

I also heard "Single Line's murdering us!" Not sure if said by enemy or ally...

It's probably your buddies, and I think the quote goes "Tango Line's murdering us", as a reference to one of the missions in AC04.