Hello again everyone !!
Building Deathwatch squad preview by WHTV.
You can build Primaris Kill team by mixing the different models.
Each one grant you a special rule to the whole squad.
They didn't spoke of mixed Oldmarines/Primaris.
-Intercessor : Bulk of the unit/ special ammo.
-Reivers : grant terror troops. (-1 ld)
-Agresssors : Relentless advance (no penalty to move/advance and shoot heavy or assault.)
-Inceptors : Fall back and shoot.
-HellBlaster : No rules.