Jake Christie is the commanding officer for Rhys Lindstrom's troop in Obsidio.
Christie dies saving Waimarie, the local mascot for his troop. Waimarie is apparently something that reminds him of home, and his final moments are making sure she is safe from dying. Waimarie means 'lucky'.
Christie has at least 1 sister and has 3 pets. These pets are called names of mostly Maori origin. Christie was apparently supposed to be gone for 2 weeks and feels bad for leaving his pets with his sister. This isn't because she doesn't take care of them, but she does not know his pets as well as he does, and he wonders if he misses them in his final moments.
Christie is supposed to be tough and mean to his troopers, but he is a soft-hearted guy that likes animals.