As promised, here are some pictures of the start of my Son's of Guilliman chapter. Since my first game is going to be a combat patrol mission w/400 pts, I decided to call this Patrol Group Axius, made up of elements from the 1st, 2nd, and 3rd squads of the 4th company.
First up, Squad #1, missile launcher, plasma gun, 2 bolters, sarg w/bolter and CCW. Missile launcher and sarg are from the Battle for Macragge set:

Squad #2, uh...this one is still being built. Sarg w/bolter, missile launcher, plasma gun and 2 bolters. As you can see I am working on the plasma gunner:

And squad #3, sarg w/bolt pistol and power fist, flamer and 5 bolters: