Coincidence or Evidence?

1) During part 2 of 'Blood, Sweat and Tears' Riley mentions a Zombie who is huge with huge muscles. Behemoth to be?
2) In The Devil's Workshop Riley and Kalani discover a room in which it looks as if something had burst through the door and frame. Behemoth was there?
3) In the last part of Blood, Sweat and Tears, when they are watching the tracking devices, Angel mentions zombie cliques because the tagged zombies go off into two different directions. Three go south and three go east. The Water Pumping Station is mentioned as being south of the Tower (For some reason the Map shows the Pumping station towards the north.) Zombie Clique