To the guy saying just move, the OP is mentioning that if you throw the stun ON A RETREATING SQUAD it stops them. You cannot tell s retreating squad to do anything, read the OP before jumping down his throat. Big beef I have with stuns is that they do a very significant amount of damage and drop models. Double punishment for an already useful feature, the stun itself.
IDK man not everything requires counter play, you can chase down models that are retreating , and with what counter play is there? It could be a regular grenade that wipes on retreat with what counter play?
2 squads run into eachother your one drops a model immediately, where is the counter play? Stuns might be a little op in damage best ive seen is maybe 3 models killed and a large amount of health taken away to a garrisoned maxim...