just a few thoughts after percolating a bit on your last posts.

I feel that by introducing the newbie to all the Vanguard members so early in the story, you've lost a lot of potential for dramatic impact.

biggest example: you've played the zombie card now in this reality (insert kill the joke/flog the dead horse bit here), with some team members going out on target practice and such. you've played up the dangers of these things, etc.

yet, you've already introduced a team member who is capable of coming and going freely amongst the zombies, and even ending their threat altogether. that being: Grimm.

you would have had much more of a dramatic intro for that character if he happened to be the big zombie that no one else was aiming at, and that newbie decides to take a pot shot on. that's a much more dramatic and effective way of bringing that character into the story, as it's not only a memorable introduction, but a good way to introduce the reader to the character's abilities.

your use of Brianna however, to herd the zombies was very effective.

just two cents worth.