I did A little playtesting with them and the results were pretty much as I thought.
2 Squads vs Monks and Amazons: Guards got lucky with poor defense rolls and crushed them.
1 squad vs. one squad of Monks: Much closer with Monks leaping and gaining height, it came down to 1:1 with guard getting initiative and the win.
1 squad vs. 4th mass: easy win for guards by out ranging them.
1 squad vs. Omnicron Snipers: easy win for snipers with better fire power and defense. Never got to use Overwhelm and see that it is very hard to get more than 3 guards around a figure. I see them only trying to use the power against high defense no range figures. In other words try to overwhelm them. Point wise I could see them at 110 but I would like to know how other people see them.