Octopoid wrote:Units mounted in open-topped transports may all fire their ranged weapons. May they also benefit from their defensive grenades? (I.e. a unit of Dark Eldar Kabalite Warriors with a Phantasm Grenade Launcher in a Raider)
Sure, why not.
Defensive grenades only come into play when your unit is shot at or assaulted; units aboard transports cannot be shot at nor assaulted.
So it does not matter if you can use them or not, they can never come into effect.