[Hellboy]

Is there a good place to go to looks for a summary of effects on land units, when they fight underwater (using barrel of air, or other means)? In particular I'm wondering if archers fire arrows at all, although I seem to remember from my Dom2 days (which was quite long ago), that there was a list of effects/penalties when you go underwater.

Sorry if I missed something from searching or in the manual, but I did at least make the effort before I posted!