Slitherine

Hi everyone,

I noticed the Imperial Guards have the possibility to perform extra actions with their extra weapons while Space Wolves are not (and I assume the same with Orks). Is this an oversight? Specific example: IG Chimera can shoot it's multilaser with all it's actions, then have a "free action" with it's bolter. The SM Predator with assault cannon and double heavy bolters have to use an action point on either of the attacks. Could someone explain this to me?

Also - if anyone could - what decided when a unit retaliates (both in range and melee)

Thanks! =D