As I mentioned in one of my previous posts, the army setup might have a role on this. The following screenshots are taken from the same tournament encounter, with different army setups of mine:
Squad 1...................Squad 2.............Squad 3...............Squad 4............Squad 5.............Gridlines
Orc Strategist II........Ranger II...........Banshee II...........Ranger II...........Banshee II...........No
Orc Strategist II........Ranger II...........Bud Sorceress.....Ranger II...........Bud Sorceress....Yes
Orc Strategist II........Ranger II...........Bud Sorceress.....Ranger II...........Banshee II..........Yes
Orc Strategist II........Ranger II...........Banshee II...........Ranger II...........Bud Sorceress....Yes
Banshee II................Ranger II...........Orc Strategist II...Ranger II...........Banshee II...........No