Doc would have been last to show up - he offered to be backup, as he's still very insecure about his dueling skills, and he does need to work on his courage. He would have shown up after Sturgis' patronus message, and probably rushed out of his room even without a mask out of nervousness. Since he's just about useless in bringing down the wards, he would have definitely tried and basically just taken direction from whoever told him what to do, helped with wolves. . .basically anyone can boss him around, he's buckled down a bit.
He probably wasn't sure about apparating back to Edgar's house just out of his usual weirdness about "not wanting to be any trouble," but helped out anyways, stood around and did whatever had to be done - all while biting his nails and freaking out. He's really trying to be more militant and proactive, but it's clear he still feels out to sea.